The thumb is the short, thick finger of the hand. It can be moved against one of the other four fingers to grasp things.
拇指是手上乂短又粗的那个手指。它可以移向其他四个手指里的一 个来抓东两。
3
With that instinctive intuition and manly grasp of mind which enabled him to see the whole of a subject, he put his finger upon the two defects which he had already-touched upon.