think back (to sth)

recall and reconsider sth in the past 想起并重新考虑（过去的）某事; 反思.

thickly, thickness, thickset, thief, thieve, thievery, thievish, thievishly, thigh, thigh-bone, thimble, thimbleful, thin, thine, thing, things considered, thingummy, think, think about sth., think ahead (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, think-tank, thinkable, thinker,