creep (back) into

释义：“潜入/回”，本意指在物理上悄悄进入（到原先的处所）。在留学文书里也经常用到它的引申义，形容一种负面影响（再度）带来不易被察觉的转变。

例句：
Relieved of my masthead status, I crept back into my writer's cave, determined to keep a low profile and stay out of trouble.
Kyber heard outrage creep into his voice as his mood darkened.