several years 与couple of years的区别
several years 与couple of years的区别
a couple of years
英语翻译that happened a couple of years of years ago.这里的a couple
Three years ago与Before three years的区别是什么?
in ten years与ten years later的区别
30 years later 与in 30 years 的区别
three years 与three years old的区别
years ago与before two years的区别.
请教three years later与three years ago的区别?
这个词组“a couple of years”在以下的句子中是何含义?
“A couple of years”到底是指几年?
several years ago,well-known的意思,