associations造句

Some associations provide homes to buy or part-buy.
一些协会提供可以整套购买或部分购买的房子。

Colleges may be accredited by regional associations.
学会是否合格可由地区各协会作出鉴定.

Most galaxy associations are small and have a low density contrast.
大多数星系协是小的,密度反衬低.

相关问题