engagement

习惯用语be under an engagement (to)1.■有约break an engagement1.■违约enter into an engagement with1.■同...订约make an engagement with1.■同...订约meet one's engagements1.■履行(契约等)义务; 偿还债务特殊用法audit engagement1.■审计契约future engagement1.■预约, 装载gear engagement1.■齿轮齿啮合gradual engagement1.■分级挂档meshing engagement1.■啮合smooth engagement1.■平滑接合thrift engagement1.■储蓄鼓励thread engagement1.■螺纹啮合tip engagement1.■极尖插入度working engagement1.■端铣时工件被切部分宽度(柱铣时为切削深度)engagement of star-wheel1.■星轮啮合