It can be held in the hand, moved, and put into or onto something.
可以拿在手中，可以移动，可以放在某些东西上面或者里面。
Being caught in the fog, people felt their way along the walls of houses with one hand, while they put out the other in front of them so as not to knock against something or somebody.
在遭遇到雾时，人们用一只手沿着房子的墙壁摸索着前进，同时在他们前方伸出另一只手以便不撞着某东西或某个人。
When you 5. put up your hand in class, the teacher knows you want to say something 6. or ask questions.
当你在课堂上举手，老师知道你想说点事或者是问问题。
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