clam --1. 蛤,蛤蜊,蚌<=>沉默 2.夾具，鉗子

停止講話;閉口不言

Everybody shuts up like a clam as soon as you mention it.

She clammed up when people mentioned her son

The suspect clammed up when lawyers asked about his girlfriend.

Will you clam up! The boss is talking.

You should not clam up on him.

守口如瓶

The movie star is a clam about her age.

拾蛤,撈蛤,挖蛤

They go clamming every weekend in the summer.

1. 
   
   鉗,夾具[C]
   
   
   
2. 
   
   夾子,鉗子[P]