think-tank

n [CGp] organization or group of expertsproviding advice and ideas on national or commercial problems （国家的或商业的）智囊团, 专家小组.

think about sth., think ahead (to sth), think back (to sth), think better of, 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, thinkable, thinker, thinking, thinking-cap, thinly, thinner, thinness, third, third degree, third degree burn, third party, third-party insurance, third-rate, thirdly, thirst, thirstily, thirsty, thirteen, thirteenth, thirtieth,