短语词组短语Tighten Belts 勒紧裤腰带tighten belt 节省开支Tighten bolts 拧紧螺栓tighten n 使变紧Then Tighten 然后紧固tighten further 进一步收紧partial tighten 偏紧Tighten Sensed 发紧Tighten pores 收紧毛孔tighten up 加强；使紧密；拉紧；使更牢固tighten one 's belt 节约度日；束紧腰带 返回 tighten