| 释义 | ●ˌpitch ˈin (with sb/sth)   (informal) to join in willingly with sb to help with an activity 志愿加入;参与;支援◆We all pitched in and soon finished the job. 我们都上手帮忙,很快便干完了工作。◆Lots of people pitched in with advice.
 很多人主动出主意。◆Ruth pitches in with the adults before she goes to school.
 露丝上学前和大人一起干活。[v + adv]
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