Envelops
n. 包络线；信封（envelop的复数）
🗣️ 情景例句
Calm down.
冷静一点。
There is a crook(=affliction,trial) in the lot of every one.
人生总有倒楣事；人生总有不如意处。
It is called 'sick humour'.
它被叫作“病态幽默”。