动词短语
中文翻译：投入
同义词：
['contribute', "join in例句：1. It's important for everyone to pitch in and help out during the event.（在活动中每个人都应该贡献自己的力量。）"]
例句：
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1. It's important for everyone to pitch in and help out during the event.
在活动中每个人都应该贡献自己的力量。
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2.The team needs all members to pitch in and work together to achieve our goals.
团队需要所有成员共同努力实现我们的目标。
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3.She decided to pitch in and volunteer at the local food bank.
她决定加入当地的食品银行做志愿者。