n (1)胶(sticky substance used for sticking things together)[U]：stick the pictures into the book with～用胶把这些图片粘到书里;

(2)口香糖(chewing-gum)[U]：chew～嚼口香糖;

(3)软(橡皮)糖(hard transparent jelly-like sweet)[C](或gum-drop)：fruit～s 果味橡皮糖;

→′gummy adj 粘性的;涂有胶的;′gumboot n 长筒胶靴;′gum-tree n 橡胶树;

vt 在……上面涂胶，(用胶)粘合(spread gum on the surface of sth;glue sth with gum)[T+n，T+n+prep (to/onto)，T+n+adv(down/(together)]：～a piece of paper cards/sb's suitcase 把纸粘到卡片上/把标签粘到行李箱上;～down the flap of an envelope 把信封的封口粘上;False eyelashes are～med together. 假睫毛被粘在一起。

gum up the works 弄糟(砸)(infml)：He's really～med up the works with all his stupid ideas for improvements.他那些愚蠢的改革念头真的把事情弄糟了。