gum

n.牙床；树胶；齿龈；粘性物质

v.搞砸；用牙床嚼；以树胶粘合

He has some sore swellings on his gum. 他牙床肿痛。

Heart attack patients usually have gum diseases! 心脏病患者通常患有齿龈疾病。

We can stick these pictures into the book with gum. 我们可用胶水把这几张画粘贴在书里。

He likes chewing gum. 他喜欢嚼口香糖。

You'll gum up the jobs if you do it this way. 你这样做会把事情搞砸。

It may well gum up the joint. 最好把结合处粘上。

You can gum this piece of wood onto the wall. 你能把这片木头粘到墙上去。

His pocket was all gummed up with candy. 他的口袋全被糖粘住了。

gum用作名词时意思是“树胶”“口香糖”,转化成动词时,指“(把某物)黏合起来”或“给…涂胶”。

gum可作及物动词,也可作不及物动词,作及物动词时,跟简单宾语。

gum的过去式和过去分词均为gummed。