Two of the same kind; a pair; brace.

一对；一双。

Man and wife.

夫妇。

Partners at a dance, game, etc.

成对舞伴；(游戏时)配对的同伴。

Pair of equal forces acting in parallel but opposite directions, tending to produce rotation.

【理】力偶。

An indefinite small number.

少数几个。

To link or join together.

使连合；使结合。

To unite.

联成一体。

To form in pairs.

成双；结对。

To unite sexually.

交配。