talk off the top of one✀s head是什么意思

talk off the top of one's head
[美国英语]即席讲话，无准备地讲话
off the top of one's head
[美国口语]当场；立即；飞快地；脱口而出地，未经仔细思考地
例句：
Sorry,I can't give you the exact off the top of my head.
But I guess the percentage of working women in the American labor force right now is about,oh say ,47%.
这个负责预算的主管说：对不起，我现在一下子不能给你精确的数字。但是，我猜在美国整个劳力中，工作的妇女大约占，嗯……就说47％吧。

talk off the top of one's head
说话不假思索
双语对照

词典结果：
talk off the top of one's head
v.即席发表谈话;

以上结果来自金山词霸

例句:
1.
Video footage on the internet showed at least eight bodies assembled in a room, one ofthem with the top half of its head blown off.
网上有一段视频显示八具尸体堆在一个房间里面，其中一具上面半个头都没了。

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talk off the top of one's head
说话不假思索
双语对照

词典结果：
talk off the top of one's head
v.即席发表谈话;