Envelops
n. 包络线；信封（envelop的复数）
🗣️ 情景例句
I'm sure they'll like it.
我相信他们会喜欢的。
No one is wise at all times.
人总有一时之失。
The turtle at last gives up by pulling his feet under his shell and the game is over.
海龟终于屈服了，将4条腿缩进壳内。