the west wind and fallen leaves -- an autumn scene

laughing covered by greetings - yán xiào yàn yàn

overcautious and indecisive - qián zhān hòu gù

A witness to the truth - dào cún mù jī

sweep the floor - sǎo dì wú yí

deck the tree with bogus blossom - shù shàng kāi huā

A tangle - zhī fēn jié jiě

act from inside in coordination with forces attacking from outside - lǐ gōu wài lián

support oneself - zì shí qí lì

Go beyond the gap - zuān xué yú xì

have illicit relations with sb. - yú qiáng zuān xì