形容词openpublicovertobvious
1. in secret : 秘密地；
形容词
1. He left through a secret door.
他经由一暗门离开。
2. The political prisoner was executed after a secret trial.
那名政治犯在受秘密审判后被处决了。
3. He is secret about his past.
他对自己早年的经历一向嘴紧。
名词
1. One of the secrets of good health is regular exercise.
身体健康的诀窍之一是定时运动。
2. What is the secret of his success?
他成功的秘诀是什么？