pitch in   (TTS發音)

1. start work eagerly 努力投入工作

    If everyone pitched in we'll soon have the job finished. 如果每個人都拼命幹，我們很快就能把活幹完。

2. give help or money for sth. ；contribute幫助某事；捐獻

    He wouldn't have finished the painting if his wife hadn't pitched in. 如果沒有他妻子盡力協助，這幅畫他就完不成了。

    We all pitched in 5 yuan to buy her a present. 我們每人都捐5塊錢買了一份禮物送給她。