A2 [ U ] some but not all of a thing部分，局部

A1 [ C ] a separate piece of something, or a piece that combines with other pieces to form the whole of something构成部分，组成部分

B2 [ C ] one of the pieces that together form a machine or some type of equipment零件，部件

[ C ] a single broadcast of a series of television or radio programmes or a division of a story（电视连续剧或连播剧的）集，节，段；（小说的）部，篇

[ C ] one of two or more equal, or almost equal, measures of something一等份

B1 [ C ] one of the characters in a film, play, or dance, or the words, actions, or movements that are said or done by that character角色；台词，表演

[ C ] the music that a particular musician plays in a group部；声部

[ U ] involvement in or responsibility for an activity, or action职责，作用

[ C ] US UK parting a line on someone's head made by brushing the hair in two different directions（头发的）分缝，发缝

C2 [ I or T ] to separate or cause something or someone to separate（使）分开

[ T ] If you part your hair, you arrange it so that it falls on either side of your head by separating it with a line down the middle or on one side.梳分（头发）

C2 [ I ] formal If two people part, they leave each other, often at the end of a relationship.分别；分手

partly部分地