creep

n. 爬,徐行,蠕动
v. 爬,蔓延

We crept upstairs so as not to wake the baby.

为了不吵醒婴儿，我们蹑手蹑脚地上了楼梯。

The cat was creeping silently towards the mouse.

猫悄悄地朝着老鼠爬过去。