Waterproof trousers, typically worn over other trousers.
（尤指穿在其他裤子外面的）防水裤
Example sentencesExamples
The final choice, chosen for its lightness, performance, and packability, was a Patagonia Torrentshell jacket and overtrousers.
It rains in the city, as it does on an island, but people do not wear plastic waterproof overtrousers here.
Outer shell clothing: some kind of hooded, weatherproof jacket and overtrousers.
We are ferried from the fishing boat by a small orange dinghy flooded knee - deep with freezing water, with only the Sprayway waterproof overtrousers combined with my ludicrously expensive Drys waterproof socks to keep my toes dry.
It was the only wet day, but on that day I was really grateful for my gumboots, overtrousers and parka.