1 [I,T] overflow (with sth) to be so full that there is no more space 满溢；溢出: The tap was left on and the bath overflowed. 水龙头没关，浴缸的水满得溢出来了。The roads are overflowing with cars. 马路上挤满了汽车。

2 [I] overflow (into sth) to be forced out of a place or a container that is too full （因地方或容器容纳不下而被）挤出，外流: The crowd overflowed into the street. 人群被挤到了街上。