drop和fall的区别

DROP

The smallest quantity of liquid heavy enough to fall in a spherical mass.See table at measurement
一滴：重量足够以滴形体落下的最小量液体参见 measurement
A small quantity of a substance.
点滴：少量的某种物质
drops Liquid medicine administered in drops.
drops 一点点：以液滴形式使用的药液
A trace or hint:
丝毫：一点痕迹：
not a drop of pity.
没有丝毫的怜悯
Something shaped or hanging like a drop.
滴状物：似液滴或象液滴一样悬挂的东西
A small globular piece of hard candy.
水果糖：小的球形硬糖
The act of falling; descent.
落：落下的动作；下降
A swift decline or decrease, as in quality, quantity, or intensity.
下跌：在质量、数量或密度上的迅速下降或减少
The vertical distance from a higher to a lower level.
落差：从一个较高平面到一个较低平面的垂直距离
The distance through which something falls or drops.
落差：物体落下通过的距离
A sheer incline, such as the face of a cliff.
落差：垂直落差，如悬崖的垂直落差
A descent by parachute.
空投：用降落伞投下
Personnel and equipment landed by means of parachute.
空投人员或设备：用降落伞降下的人员与设备
Something, such as a trap door on a gallows, that is arranged to fall or be lowered.
下落板：被设计降低或落下的东西，如绞刑架的下落板
A drop curtain.
垂幕
A slot through which something is deposited in a receptacle.
投入孔：承接物上可投入东西的缝
A central place or establishment where something, such as mail, is brought and subsequently distributed.
贮藏所：把东西，如邮件拿来并分配的中心点或场所
A predetermined location for the deposit and subsequent removal of secret communications or illicit goods, such as drugs.
藏匿处：预先确定的放置或取走秘密情报或非法物品，如毒品的地点
The act of depositing such communications or materials.
藏匿：放置情报或物品的行动
Electronics A connection made available for an input or output unit on a transmission line.
【电子学】 传输线：可用于联接输入或输出元件的导线
v.（动词）
dropped， drop.ping， drops
v.intr.（不及物动词）
To fall in drops.
滴下
To fall from a higher to a lower place or position.
落下：从较高地方或位置落到落低地方或位置
To become less, as in number, intensity, or volume.
减少：数量、密度或体积的减少
To descend from one level to another.
下降：从一个水平降落至另一水平
To fall or sink into a state of exhaustion or death.
倒下：跌至精疲力竭或死亡状态
To pass or slip into a specified state or condition:
落入特定状态或处境：
dropped into a doze.
打起了瞌睡
Sports To fall or roll into a basket or hole. Used of a ball.
【体育运动】 投球入篮，击球入穴：指球落入或滚入篮内或洞内。用于球

FALL

To drop or come down freely under the influence of gravity.
落下：因重力作用而自由下降或下落
To drop oneself to a lower or less erect position:
跌落：使自己降低到更低或更倾斜的位置：
I fell back in my chair. The pilgrims fell to their knees.
我跌坐到自己的椅子上。朝拜者跪了下去
To lose an upright or erect position suddenly.
突然倒下：突然失去垂直的或笔直的位置
To drop wounded or dead, especially in battle.
受伤：跌伤或跌死，尤指在战争中
To go or come as if by falling:
落下：好象通过降落来或去：
All grief fell from our hearts. Night fell quickly.
所有悲伤从心头落下。黑夜迅速降临
To come to rest; settle:
停留；安放：
The light fell on my book.
光线落在我的书上
To hang down:
自由下垂：
The child's hair fell in ringlets.
小孩的卷发自然下垂
To be cast down:
朝下：
Her eyes fell.
她的眼睛朝下一瞥
To assume an expression of consternation or disappointment:
露出惊慌或失望的表情：
His face fell when he heard the report.
当他听到那个报告后感到很沮丧
To undergo conquest or capture, especially as the result of an armed attack:
被攻陷：遭到军事上的总失败或俘虏，尤指一武装进攻的结果：
The city fell after a long siege.
在长期围困下，这座城市失陷了
To experience defeat or ruin:
失败：经历失败或毁灭：
After 300 years the dynasty fell.
300年后王朝覆灭了
To lose office:
下台：失去职位：
The disgraced prime minister fell from power.
那个名誉扫地的首相失去了职位
To slope downward:
斜向：按斜坡下降：
The rolling hills fall gently toward the coast.
起伏的山丘逐渐向海岸缓降
To lessen in amount or degree:
减低：数量或程度的降低：
The air pressure is falling.
气压在降低
To decline in financial value:
下跌：金融价值下降：
Last year, stock prices fell sharply.
去年，股票价格猛跌
To lose weight.
减轻
To diminish in pitch or volume:
减低：音量减弱：
My friend's voice fell to a whisper.
我朋友的声音逐渐变为耳语
To give in to temptation; sin.
屈服于诱惑；犯罪
To lose one's chastity.
失去贞洁
To pass into a particular state, condition, or situation:
处于：进入某一特别的状态或状况：
fell silent; fall in love.
变得沉默；坠入情网
To occur at a specified time:
发生：在特定时间发生：
New Year's Day falls on a Tuesday this year.
今年的元旦是星期二
To occur at a specified place:
发生：在特定地点发生：
The stress falls on the last syllable.
重音在最后一个音节上
To come, as by chance.
来：偶然到来
To be given by assignment or distribution:
被分派任务：
The greatest task fell to me.
最重的任务派到我头上
To be given by right or inheritance.
被给予：被赋予权力或继承权
To be included within the range or scope of something:
在…范围之内：被包括在某物范围之内：
The specimens fall into three categories.
标本被分作三类
To come into contact; strike:
接触；遇到：
My gaze fell on a small book in the corner.
我的目光落在角落里一本小书上
To come out; issue:
出来；出口：
Insincere compliments fell from their lips.
从他们嘴里说出的虚伪恭维
To begin vigorously:
精力充沛地开始：
fell to work immediately.
突然精力充沛地投入工作
To be born. Used chiefly of lambs.
出生：被生下来，常指羊羔

drop
[ drCp ]
v.滴下, 落下, (使声音等)变弱, (使价格等)下降, 使跌倒, 使结束, 不再讨论, 停止与(某人)交往
n.落下, 下降, 滴, 滴剂, 点滴, 微量, 下跌

fall
[ fC:l ]
n.秋天, 落下, 瀑布, 降低, 落差, 采伐量, 堕落, 下降
vi.倒下, 落下, 来临, 失守, 变成, 垮台, 下跌, 阵亡
vt.<美><英方>击倒, 砍倒(树木)
adj.秋天的

drop一般的含量都很小，微量、点滴
Fall则是大幅度地落下

drop,常指水滴等,
FALL指物体等!

fall不及物动词，
落下、掉下之意；
而drop是及物动词，
扔下，
使掉下之意。
如;:
The
stone
fell
down
onto
his
feet.
He
dropped
the
stone
onto
his
own
feet.

fall 表示落下，跌落，降落等时，通常指，在重力的作用下落下，或者失去平衡而跌落。fall由此引申出来的意思，比如垮台，失去地位等。而且此时fall一般只作为不及物动词使用。比如：
The leaves fall in the autumn.
The table fell off the table onto the floor.
The government fell after the revolution.那场革命后政府垮台了。

drop 表示降落，落下时，通常暗含有是一种意外的意味。drop既可以是及物动词也可以是不及物动词。
The bottle dropped and broken.
The climber slipped and dropped to death.攀登者一失足摔死了。
Don't drop that bottle or it'll break.别把瓶子弄掉了，不然会摔破的

另外要注意，fall可以替代drop，比如：
The climber slipped and fell to death.攀登者一失足摔死了。

drop和fall都可以作名词，drop当名词讲时，表示“（液体的）珠，滴”比如：drops of rain,雨滴drops of sweat,汗滴

fall当名词讲表示降落，落下（另外也当秋季讲） 比如：
I had a fall from the horse and broke my arm.我从马上摔下来把胳膊摔断了。

另外drop 和fall都还分别有其他意思，要靠今后都注意学习喽。