互补品的英文：
complement goods
A high negative cross-elasticity between two goods means that they are close complaints.
存在很高的负值，就说明这两种商品是很密切的互补品。
v. 补充，补足
n. 补充；补充物，补足物；补语
objective complement
ph.1. 【语】宾语补语
The secant of the complement of a directed angle or arc.
余割有向角的余角或弧的余割
The absence of complementation suggests that they are in the same gene.
凡是没有互补作用的，就说明它们属于同一基因。
There will be a written examination to complement the practical test.
会有笔试作为实践考试的补充。
We complement one another perfectly.
我们相互取长补短，堪称完美。
n. 商品，货物；动产，私人财产
A good appetite is a good sauce
饥不择食
The prompt goods have good qualities.
当场付款的物品质量不错。
Be not simply good; be good for something.
不要单纯做个好人，还要做个能派上用场的人。
Have a good mind
很想…
Good gracious, no!
天哪，不！