他激动的一句话也说不出来用英语怎么说

"He was so excited he couldn't say a word" 或 "He was at a loss for words" 这是一种习惯用语, 意思是某人非常兴奋或震惊到说不出话来.

例句:

He was so excited he couldn't say a word when he saw her after so many years.
The news of his promotion left him at a loss for words.

中文翻译:

他在见到她多年后时, 激动得说不出话来。
他升职的消息让他说不出话来。