slack off
collocation偷懒；松懈
Stop slacking off and get back to work.
别偷懒了，回去工作。
偷懒；懈怠
先理解核心含义，再看它在真实句子里的用法。
偷懒；懈怠
To avoid work or do less than one is expected to do.
Stop slacking and help me finish this report.
别偷懒了，来帮我完成这份报告。
常与 off 连用：slack off。
使松弛；放松
To slacken.
因与水化合而失去内聚力或坚固性；熟化
To lose cohesion or solidity by a chemical combination with water; to slake.
偷懒；懈怠
To refuse to work as hard as one is supposed to.
slack
Base
原形
slacks
3rd person
第三人称单数
slacking
-ing
现在分词
slacked
Past
过去式
slacked
Past participle
过去分词
He often slacks off after lunch.
他午饭后经常偷懒。
They slacked their efforts yesterday.
他们昨天松懈了努力。
She is slacking on her homework.
她正在作业上偷懒。
规则动词，表示放松或松懈。
He slacked all afternoon instead of studying for the exam.
他整个下午都在偷懒，没有为考试复习。
She never slacks, even when the manager is away.
她从不偷懒，即使经理不在。
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偷懒；松懈
Stop slacking off and get back to work.
别偷懒了，回去工作。
放慢脚步；放慢速度
She slacked her pace when she saw the old man crossing the street.
她看到老人过马路时放慢了脚步。
放松绳子
Slack the rope so the tent doesn't pull the peg out.
把绳子放松一些，免得帐篷把木桩拔出来。
对某人宽容一些；给某人留有余地
The teacher cut the students some slack and extended the deadline.
老师对学生网开一面，延长了截止日期。
收拾残局；承担别人未做的工作
If you don't finish your part, the team will have to pick up the slack.
如果你不完成自己那部分，团队就得替你收拾烂摊子。
偷懒；松懈
He was slacking off at work and got a warning.
他在工作中偷懒，结果受到了警告。
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记作 s + lack：缺乏(lack)干劲时，就会 slack（松懈、偷懒）。
语域：informal 常见场景：workplace、everyday conversation 该词表示“偷懒、不尽全力”时通常用于非正式或口语场合，常带批评语气；正式书面表达中较少这样单独使用。
以上六个词都与 slack /slæk/ 押韵，均含字母组合 -ack，发 /-æk/。注意形近词 slake /sleɪk/ 拼写与 slack 相近，但元音不同，读 /eɪ/，不与 slack 押韵。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY, WORDNET.