slack

松弛, 松懈, 淡季, 闲散, 家常裤

dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve; a stretch of water without current or movement; the quality of being loose (not taut); a cord or rope or cable that is hanging loosely

松弛的, 不流畅的, 疏忽的, 无力的, 呆滞的, 软弱的, 漏水的

马虎地, 缓慢地

放松, 使缓慢

松懈, 减弱, 松弛