翻译几个句子到英文，要准确！

1.Studying is not the most important in your life.
2.Either choose to suffer for three years, or forever.
3.No pain, no gain.(这是一句英语名言，意思相同）
4.No matter success or failure, (后面我不懂是什么意思）
5.（我不懂，‘17班是不可战胜的’意思是说17班不能赢or17班一定要赢？）
-17班不能赢：Hand in hand towards the future, class 17 can never win!
-17班一定要赢：Hand in hand towards the future, class 17 will win the game!
(class 17 wins forever!)
(class 17 is the winner!)
真的全部自己翻译哟！！！It's true!!!

3.一份耕耘，一分收获。No pains ,no gains.