pile up

柯林斯词典

pile up (piling,piled,piles)

1. PHRASAL VERB If you pile up a quantity of things or if they pile up, they gradually form a pile. 堆积
Bulldozers piled up huge mounds of dirt. 推土机堆起了一个个大土堆。
2. PHRASAL VERB If you pile up work, problems, or losses or if they pile up, you get more and more of them. (工作、问题、损失等) 积累
Problems were piling up at work. 工作中的问题越积越多。