at a loss for words片语

片语

1. 1

   说不出话来、哑口无言、无言以对

   When she saw the surprise party, she was at a loss for words.

   看到这个惊喜派对时，她激动得说不出话来。

2. 2

   不知该说什么、语塞

   He apologized so sincerely that I was at a loss for words.

   他道歉得如此诚恳，我一时不知该说什么。