Ulcers
n. 溃疡, 疡（ulcer的复数）
🗣️ 情景例句
Americans consider it extremely bad manners to be late.
美国人认为迟到是一种极不礼貌的做法。
May I see your boarding pass?
我能看你的登机牌吗？
A painter who had been working on the tower hung a pot of paint on one of the hands and slowed it down!
在钟塔上干活的一位油漆工把一只油漆桶挂在了一根指针上，把钟弄慢了！