thinking-cap

n (idm 习语) put one's `thinking-cap on (infml 口) try to solve a problem by thinking about it 经思考而努力去解决问题.

think for oneself, think nothing of, think of, think of ...as, think of sth/doing sth, think of...as, think oneself as, think out, think over, think sth out, think sth over, think sth through, think sth up, think through, think twice, think up, think-tank, thinkable, thinker, thinking, thinly, thinner, thinness, third, third degree, third degree burn, third party, third-party insurance, third-rate, thirdly, thirst, thirstily, thirsty, thirteen, thirteenth, thirtieth, thirty, this, thistle, thistledown,