couple

1. QUANT If you refer to a couple of people or things, you mean two or approximately two of them, although the exact number is not important or you are not sure of it. 一两个; 几个[QUANT 'of' pl-n]

Across the street from me there are a couple of police officers standing guard. 我所在的街对面有一两个警察在站岗。

I think the trouble will clear up in a couple of days. 我想几天内麻烦就会消除。

2. DET Couple is also a determiner in spoken American English, and is often used before "more" and "less." 几个

...a couple weeks before the election. …选举前的几周。

3. PRON Couple is also a pronoun. 几个

I've got a couple that don't look too bad. 我有几个，看上去还不错。

4. N-COUNT-COLL A couple is two people who are married, living together, or having a sexual relationship. 一对夫妇

The couple have no children. 这对夫妇没有孩子。

Burglars ransacked an elderly couple's home. 窃贼们洗劫了一对老夫妇的家。

5. N-COUNT-COLL A couple is two people that you see together on a particular occasion or that have some association. (特定场合或有特定联系的) 一对人

...as the four couples began the opening dance. …随着4对舞伴跳起开场舞蹈。

6. V-T If you say that one thing produces a particular effect when it is coupled with another, you mean that the two things combine to produce that effect. 与…结合[usu passive]

...a problem that is coupled with lower demand for the machines themselves. …一个与对机器本身需求量减少连在一起的问题。