rein in片语动词KK [ren ɪn] /ɹeɪn ɪn/发音片语动词1控制、约束、抑制可拆开The new mayor promised to rein in city spending next year.新市长承诺明年要控制市政支出。2管束、收敛可拆开She had to rein in her temper during the long meeting.在漫长的会议中,她必须收敛自己的脾气。3勒住、放慢He reined in his horse at the edge of the river.他在河边勒住了马。用这个字练口说→