slack

loose, slack

这两个形容词均含“松驰的”之意。
loose: 常用，通俗，指人的精神或东西的松驰。
slack: 强调缺乏牢固性或稳固性，不坚定。

名词 slack:

1. dust consisting of a mixture of small coal fragments and coal dust and dirt that sifts out when coal is passed over a sieve
2. a noticeable deterioration in performance or quality
   同义词：slump, drop-off, falloff, falling off
3. a stretch of water without current or movement
   同义词：slack water
4. a soft wet area of low-lying land that sinks underfoot
   同义词：mire, quagmire, quag, morass
5. the condition of being loose (not taut)
   同义词：slackness
6. a cord or rope or cable that is hanging loosely

动词 slack:

1. avoid responsibilities and work, be idle
2. be inattentive to, or neglect
3. release tension on
4. make less active or fast
   同义词：slacken, slack up, relax
5. become slow or slower
   同义词：slow, slow down, slow up, slacken
6. make less active or intense
   同义词：slake, abate
7. become less in amount or intensity
   同义词：abate, let up, slack off, die away
8. cause to heat and crumble by treatment with water
   同义词：slake

形容词 slack:

1. not tense or taut
   同义词：loose
2. lacking in strength or firmness or resilience
   同义词：flaccid, lax, limp
3. flowing with little speed as e.g. at the turning of the tide
4. lacking in rigor or strictness
   同义词：lax

1. Business is slack just now.
   目前生意萧条不振。
2. Winter is the slack season at most hotels.
   冬天是大多数旅馆的淡季。