to start to do or say something in a forceful way, often without thinking about it carefully

Even when she knows nothing about it, she wades in with her opinion. 即使对事情一无所知，她也要插嘴说说自己的意见。

When the crowd started throwing bottles, the police waded in with tear gas. 当人群开始投掷石块的时候，警方用催泪瓦斯进行了干预。