心机的英文：
scheming; thinking

参考例句：

I saw no reason why I should bother with you any more.
我想我也不必为你再费心机了。

scheming是什么意思：
adj. 惯搞阴谋的，诡计多端的
n. 阴谋，诡计
v. scheme的现在分词；策划，图谋

To gestate a scheme.
酝酿一个计划。

elaborate a scheme
精心拟订一项计划

draining scheme
排水规划

Their scheme rebounded.
他们的计划弄巧成拙。

They gestated a scheme.
他们酝酿了一个计划。

thinking是什么意思：
n. 思想；想法；见解
adj. 有思想的；有理性的
v. think的现在分词

I think and think and cannot cease from thinking.
我想了又想，一直想个没完。

Think of solar power, and you probably think of photovoltaic panels.
当考虑到太阳能，你一定会想到光伏电池板。

Do you think it will rain? -- Yes, I think so.
你看会下雨吗？是的，我想会下雨。

It will be better than you think for.
情况将比你预料的好。

I think this is a swell hotel.
我觉得这家饭店非常好。