secret as the grave

• n. 守口如瓶

secret as the grave的用法和样例：

例句

用作名词 (n.)

1. The movie star is a clam about her age.
   这影星对她的年龄守口如瓶。
2. She kept his secret for15 years.
   十五年来她对他的秘密守口如瓶。

词汇搭配

• secret as the grave 守口如瓶