clam up

汉语翻译

英语解释：

动词 clam up:

1. refuse to talk or stop talking; fall silent
   同义词：close up, dummy up, shut up, belt up, button up, be quiet, keep mum

例句：

1. He always clam up when we ask him about his family.
   我们一问到他的家庭时，他总是闭口不言。