（满得）要溢了
so that water or another substance is almost coming over the top
Someone had filled the sink to overflowing. 不知谁把水槽里放满了水，都要溢出来了。
mainly UK The sink was full to overflowing. 水槽满了，都要溢出来了。
By the time I came back, the bath had filled to overflowing.
They fill their beer glasses to overflowing, which makes for some messy bar counters.
For the next two weeks, the rains swelled rivers and streams to overflowing.
Three inches of rain fell within 48 hours and filled the reservoir to overflowing.
See also: overflow verb (TOO FULL)