I've always had a loud mouth, I refuse to be silenced.

我一贯大声说出自己的想法，不会迫于压力而一言不发。

柯林斯例句

You are a loud mouth.

你太贫嘴了!

英汉 - 翻译样例 - 口语

Yeah. Tom is such a loud mouth that you can't trust him with any secrets.

可不是. 汤姆那家伙实在多嘴,什么秘密都不能跟他讲.

轻松英语会话---联想4000词(上)

Jack is a loud mouth who cannot be trusted with secrets.

杰克多嘴多舌,啥秘密也守不住.

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