Helpfulnesses
(helpfulness 的復(fù)數(shù)) n. 有益；有助
??? 情景例句
I could pay you back out of my lifeguard salary.
我可以從我當(dāng)救生員的薪水中拿出來(lái)還你。
What's the longest river in the United States?
在美國(guó)最長(zhǎng)的河是什么？
Drinks can be cooled by placing them on ice rather than adding ice to them.
可以把飲料置于冰塊之上來(lái)冷卻，而不是把冰塊加進(jìn)飲料之中。