【finger习语说 】

1)point the finger at someone 指责某人

2)put one's finger on sth. 回忆起/分辨出

3)lay one's finger on sth查出/找到 (We haven't been able to lay a finger on those photos.我们还不能够找到那些图片）

4)keep one's fingers crossed 乞求某事成功

5) is all thumbs 笨手笨脚的