exactly用作副词，表示精确地、确切地、(要求得到更多信息)究竟，(答语，表示赞同或强调正确)一点不错等含义。

1.精确地;确切地;正好

Each corner had a guard tower, each of which was exactly ten meters in height.

每个角落都有一座警戒塔，每座警戒塔正好10米高。

2.确实如此/并非如此;正是/不完全是

Eve nodded, almost approvingly. "Exactly."

伊芙几乎赞同地点了点头。“确实如此。”

3.不完全是;不完全对

He"s not exactly homeless, he just hangs out in this park.

确切来说他并不算是无家可归，他只是老在这个公园里转悠。

4.根本不；决不

This was not exactly what I wanted to hear.

这根本不是我想听到的。

5.（用于问句中，表示不赞成）到底，具体

Exactly what are you trying to tell me?

你到底想对我说什么？