Double-duty
a. 两种用途的, 两用的
🧩 词语组成解析
double
['dʌbl]
adj. 双的;两倍的;两面派的;双人用的;
vt. 使加倍;把…对折;重复;
vi. 加倍，加倍努力;快步走;
adv. 两倍地;双重地;
n. 两倍;双精度型;
doub二，双+le反复 → 反复两倍 → 翻倍
🗣️ 情景例句
You don't need to do that.
你不用那么做的。
How long will it take you to repair it?
你要多久才能修好它？
The winch was again put into operation and one of the men started up the truck.
绞盘机再次启动，一位工人发动了急修车的引擎。