think sth up 发明

Think sth through 全盘充分考虑 ; 彻底地想一想 ; 全面地考虑问题

think sth over 仔细思考

think sth very hard 绞尽脑汁

think sth not worth doing 不屑

start to think sth 开动脑筋

think about sth 考虑某事 ; 认为 ; 思考 ; 考虑

think about doing sth 考虑做某事 ; 考虑做

think of doing sth 考虑做某事 ; 打算做某事 ; 想做某事

think up sth 想出