You could waste your life ironing things...你一辈子都会浪费在熨东西上

waste doing sth:浪费（金钱、时间等）干某事

Don't waste your breath trying to persuade him.

别白费口舌去劝他了。

常用短语:

waste one's breath白费口舌

waste someone's time浪费某人时间

run to waste被浪费掉

cut to waste糟蹋,未被利用

we might also be vulnerable to some of the same illnesses.所以我们也可能得同样的病

be vulnerable to:易受到 ... 的攻击

Migrant workers are vulnerable to exploitation.

流动工人易受剥削。

常用短语:

vulnerable groups弱势团体

vulnerable area薄弱部分