creep in/creep into something
phrasal verb with creep verb [ I usually + adv/prep ] uk/kriːp/ us/kriːp/ crept | crept
mainly UK（错误）不知不觉地存在，无法避免地出现
If mistakes creep in or creep into a piece of text, they are included despite efforts not to include them.
A few mistakes always creep in during the editing process. 在编辑过程中总会不小心出几个错。
One or two typing errors crept into the report. 报告中有一两处不易察觉的打字错误。
逐渐显现;逐渐引起注意
to gradually start to be noticeable
Doubts began to creep into my mind about the likely success of the project. 我逐渐对这项计划成功的可能性产生了怀疑。