“怯场”，意思是在某种场合因紧张、害怕而表现得不自然，可以翻译为“suffer from stage fright”或“have stage fright”。“stage fright”在英文中表示“an intense fear or anxiety from or about standing in front of a large group of people to give a performance or speech”。

例句：

她因为怯场而忘了台词。

She forgot her lines because of stage fright.

即便是著名的演说家，也有怯场的时候。

Even great speakers may sometimes get stage fright.