clam up
拒不开口
例句与用法：
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。
词形变化：
名词: clammer | 动词过去式: clammed | 动词过去分词: clammed | 动词现在分词: clamming | 动词第三人称单数: clams |
停止讲话; 变为沉默; 保持沉默
The suspect clammed up when lawyers asked about his girlfriend.
当律师问嫌疑犯有关他女友的事时, 他闭口不答。
Will you clam up! The boss is talking.
请你保持安静! 老板在说话。
You should not clam up on him.
你不应该拒绝跟他谈话。