英文”两个月”怎么写？

two months（名词短语）two-month（当形容词用）

I was there for two months.
I'll be there in two-month time.

名词短语 two months eg. I have a holiday of two months.
two-month也是两个月的意思做前置定语。eg. I have a two-month holiday.

一个月是

one month, 两个月是two months

LZ别忘了复数要加s哦

two months