ONE PHRASE, IN CONTEXT
at a loss for words
不知说什么好
GET TO KNOW THE MEANING
读懂它，也学会这样说。
01不知说什么好
常与 be 或 leave someone 连用。
IN A SENTENCE
His kindness left me at a loss for words.
他的善意让我不知说什么好。
The child handed him the watch he had buried years ago, leaving him at a loss for words.
孩子把那块他多年前埋掉的手表递给他，让他一时说不出话来。