combination近义词

combination的近义词为mixture

例句

1、

His treatment was a combination of surgery， radiation and drugs.

对他的治疗是把手术、放射和药物治疗结合为一体。

2、

An alloy is a combination of two or more different metals.

合金是两种以上不同金属结合而成的。

3、

A combination of internal and external factors caused the company to close down.

内外因结合导致了公司的倒闭。