1. 漫出；溢出；泛滥
    If a liquid or a river overflows, it flows over the edges of the container or place it is in.

overflow的意思

    e.g. Pour in some of the syrup, but not all of it, as it will probably overflow...
           倒一些糖浆进去，但别全倒，因为可能会溢出来。
    e.g. Rivers and streams have overflowed their banks in countless places.
           在许多地方，河流与小溪都已经决堤。

2. 充满；挤满；装满
    If a place or container is overflowing with people or things, it is too full of them.

    e.g. The great hall was overflowing with people...
           大礼堂里挤满了人。
    e.g. Jails and temporary detention camps are overflowing...
           监狱和临时拘留所里人满为患。

3. 洋溢着（情感）；（情感）溢于言表
    If someone is overflowing with a feeling or if the feeling overflows, the person is experiencing it very strongly and shows this in their behaviour.

overflow的解释

    e.g. Kenneth overflowed with friendliness and hospitality...
           肯尼思满怀友善好客之情。
    e.g. Ridley's anger finally overflowed.
           里德利终于按捺不住满腔的怒火。

4. （过多而）容纳不下的人（或东西）
    The overflow is the extra people or things that something cannot contain or deal with because it is not large enough.

    e.g. Tents have been set up next to hospitals to handle the overflow...
           医院旁搭起了帐篷以安置容纳不下的人员。
    e.g. The loch's overflow cascades into the waterfalls of a Japanese water garden.
           溢出的湖水倾泻而下，形成了一座日式水景花园的瀑布。

5. 溢流口；溢流管
    An overflow is a hole or pipe through which liquid can flow out of a container when it gets too full.

overflow

    e.g. ...the overflow pipe.
           溢流管

6. 将要溢出
    If a place or container is filled to overflowing, it is so full of people or things that no more can fit in.

overflow

    e.g. The kitchen garden was full to overflowing with fresh vegetables...
           家庭菜园里种满了新鲜蔬菜。
    e.g. He was one of the few teachers who always filled the lecture room to overflowing.
           他是为数不多的课堂场场爆满的老师之一。