放心词组英语怎么说

"Rest assured"是"放心"的英文短语表达。它来源于英语中的"re-"和"assure"两个词，"re-"表示重复或回到原点，"assure"表示确保。因此"rest assured"的意思是重新确保，让人放心。

例句：

Rest assured that your package will arrive on time. (放心，你的包裹会按时到达。)
We will do everything in our power to ensure your safety, so please rest assured. (我们会尽力确保你的安全，所以请放心。)
Rest assured that we will take care of everything. (放心，我们会照顾好一切。)