- not taut or held tightly in position; loose不紧的; 松弛的：
a slack rope
一根松垂的绳子
her mouth went slack.
她的嘴松开了。
- (of business or trade) characterized by a lack of work or activity; quiet（生意, 交易）萧条的, 不活跃的, 清淡的：
business was rather slack.
生意很清淡。
- slow or sluggish缓慢的, 松懈的：
they were working at a slack pace.
他们工作进度缓慢。
- having or showing laziness or negligence懒散的; 疏忽的; 懈怠的：
slack accounting procedures.
松散的会计程序。
- W. Indian lewd〈西印度〉淫荡的, 猥亵的, 下流的：
the veteran king of slack chat.
讲下流话大王。
- W. Indian (of a person, typically a woman) promiscuous（尤指女子）性乱交的。
- (of a tide) neither ebbing nor flowing（潮水）弛缓的, 平缓的：
soon the water will become slack, and the tide will turn.
不久水面就会平缓, 潮水将变化。
- mass noun the part of a rope or line which is not held taut; the loose or unused part绳索的松弛部分：
I picked up the rod and wound in the slack
我拾起钓竿, 将松弛的线卷起。
slacks
casual trousers便裤。
- informal a spell of inactivity or laziness〈非正式〉懈怠; 懒散：
he slept deeply, refreshed by a little slack in the daily routine.
他睡得很香, 每天都要懒散一会儿才精神焕发。
- loosen (something, especially a rope)使（绳索等）松弛。
- reduce the intensity or speed of (something); slacken减缓; 放慢; 松弛：
the horse slacked his pace.
这匹马放慢脚步。
- no obj.
slack off
decrease in quantity or intensity（数量）减少; （强度）减弱： the flow of blood slacked off.
血流减缓。
- no obj. Brit. informal work slowly or lazily〈英, 非正式〉缓慢（或懒散）地工作：
she ticked off her girls if they were slacking.
如果姑娘们工作懒散, 她就斥责她们。
- no obj.
slack up
slow down减缓, 放慢速度： the animal doesn't slack up until he reaches the trees.
这头动物一直走到树林才慢下来。
- slake (lime)熟化（石灰）。
- loosely松散地：
their heads were hanging slack in attitudes of despair.
他们无力地垂下头,摆出绝望姿态。
cut someone some slack
- N. Amer. informal allow someone some leeway in their conduct〈北美, 非正式〉允许某人行为有些余地。
take（或pick up）the slack
- use up a surplus or improve the use of resources to avoid an undesirable lull in business抓紧松弛环节, 治理整顿（指将盈余用光或提高资源利用率以避免不良的生意停滞）：
as domestic demand starts to flag, foreign demand will help pick up the slack.
由于国内需求开始萎缩, 外贸需求将有助扭转市场的不景气。
- pull on the loose end or part of a rope in order to make it taut拉紧松弛的绳索。