n.喷出；打嗝
动词belch的现在分词形式.
Billows of smoke were belching from the chimney. 巨浪似的烟正从烟囱里喷出来。
The cow gets rid of the gases formed in the rumen by belching at frequent intervals. 牛靠经常的打嗝以释放瘤胃中形成的气体。
