天机的英文：
nature's mystery; secret; something inexplicable
Nature is just like a human being; standing alone, I fell boundlessly aggrieved.
天机近人事,独立万端忧
By oft predict that I in heaven find. But from thine eyes my knowledge I derive
依据我常从上苍探得的天机。我的术数只得自你那双明眸
It is one of nature's tricks, little understood, that each day I awaken with moods that have changed from yesterday.
这是大自然的玩笑，很少有人窥破天机。每天我醒来时，不再有旧日的心情。
n. 大自然；自然方式；天性；本质；种类
natural | natural sign
白键|本位记号
The method is a natural.
这方法一定灵。
Is there necessity in nature?
自然界是否存在必然性？
n. 神秘的事物，难以理解的事物；谜；神秘；奥秘
This mystery puzzles me.
这件神秘事情使我百思不解。
She's a bit of a mystery!
她这人有点来历不明！
Don't be so mysterious.
别那么故弄玄虚。
adj. 秘密的，机密的；私下的；隐蔽的；神秘的；偏僻的
n. 秘密，机密；内情；神秘，奥秘；秘诀，诀窍；秘方
A secret between more than two is no secret
两人以上知道的秘密就不算秘密
I confide a secret to a friend.
我向朋友吐露了秘密。
The secret store is headquartered abroad.
这家黑店的总部设在国外。