Bootheels
(bootheel 的复数) n. 靴后跟；[亦作 B-]靴后跟地形区(美国密苏里州东南部的地区)
🗣️ 情景例句
You haven't answered my question.
你还没有回答我的问题呢。
An empty sack cannot stand upright.
空麻袋，立不直。
I felt very nervous when I went into his office.
我走进他的办公室，感到非常紧张。