1
- no obj. emit wind noisily from the stomach through the mouth打嗝。
2
- with obj.（常作belch out/forth/into）(especially of a chimney) send (smoke or flames) out or up（尤指烟囱）冒出, 喷出（烟, 火）：
a factory chimney belches out smoke.
工厂烟囱总会冒烟。
2.1
- no obj.
belch from
(of smoke or flames) pour out from (a chimney or other opening)（烟、火从烟囱等）冒出, 喷出： flames belch from the wreckage.
火焰从残骸中冒出来。
- an act of belching打嗝; 冒烟, 冒火。
词源
Old English belcettan, probably imitative.