1to take off (one's clothes)
2(fig.) to shed (one's former image etc)
3(of a fad or the after-effects of a disaster etc) to subside
4also pr. tùn qù
Example
suī虽rán然jī qíng激情kě néng可能huì会tuì qù褪去，què却bù róng不容tā它pò破huài坏wǒ我men们gǎn qíng感情shàng上de的lián联xì系。
虽然激情可能会褪去，却不容它破坏我们感情上的联系。
Though passion may have strained, it must not break our bonds of affection.