eg:The issue was decided by a show of hands.
这件事是通过举手表决决定的
7. show one's hand 表明自己的计划或意图;摊牌
eg:Don't show your hand too early.
不要过早摊牌。
8. show one's heels 逃走,逃离
eg:As soon as the burglar alarm went off, the housebreaker showed his heels.
防窃报警器一响,那个小偷就逃之夭夭了。