In English, the word "心机" can be translated as "cunning" or "scheming." This word comes from the Chinese language, where it is a combination of the characters for "heart" and "machine" or "device." In Chinese culture, the term "心机" is often used to describe someone who is cunning or manipulative, often in a negative way.

Here are some example sentences in English and their Chinese translations to illustrate the use of this word:

She is so cunning that she always gets what she wants. (她非常心机，总能得到她想要的东西。)

His scheming mind always comes up with new ways to deceive people. (他那心机重重的头脑总能想出新的欺骗别人的方法。)

I don't trust him because he always seems to be plotting something. (我不相信他，因为他总是好像在策划什么。)