Disserviceable
a. 危害性的, 起損害作用的
??? 情景例句
Before the barbeque let's sharpen all the knives.
燒烤之前先把刀磨一磨。
Bad habits are easily formed.
壞習慣容易養成。
That's right. Catch a cold is something you do; have a cold is something you have.
對。“傷風”是你所做的事情；而“患感冒”則是你所經歷的事情。