n. 牙龈, 树胶；牙床（gum复数形式）

n a preparation (usually made of sweetened chicle) for chewing
n the tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth
n any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying
n cement consisting of a sticky substance that is used as an adhesive
n wood or lumber from any of various gum trees especially the sweet gum
n any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum
v cover, fill, fix or smear with or as if with gum
v grind with the gums; chew without teeth and with great difficulty
v become sticky
v exude or form gum

gums的用法和样例：

例句

用作名词(n.)

Gums and mucilages are not distinguishable chemically.用化学的方法区分不出树胶和粘胶。
Even my tongue and my gums were brightly colored.甚至我的舌和我的口香糖都被涂成了鲜艳的颜色。
The usefulness of chewing gums is widely recognized.大家知道，嚼口香糖是有好处的。

词汇搭配

beat one's gums唠叨
bat one's gums天南海北地聊天...
bump one's gums天南海北地聊天...

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