名词 gum:

1. a preparation (usually made of sweetened chicle) for chewing

2. the tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth

3. any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying

4. cement consisting of a sticky substance that is used as an adhesive

5. wood or lumber from any of various gum trees especially the sweet gum

6. any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum

动词 gum:

1. cover, fill, fix or smear with or as if with gum

2. grind with the gums; chew without teeth and with great difficulty

3. become sticky

4. exude or form gum

gumn.牙床；树胶；齿龈；粘性物质v.搞砸；用牙床嚼；以树胶粘合Gumerov古梅罗夫gummousadj.有粘性的Gumucion.古穆西奥gummiten.脂铅铀矿gummingn.结胶(浸油)Gumbleyn.冈布利gumballn.口香糖球Gummeren.格默里gummate[医] 阿拉伯胶酸盐gumlinen.牙龈

1. Gums and mucilages are not distinguishable chemically.
   用化学的方法区分不出树胶和粘胶。
2. 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。
3. The usefulness of chewing gums is widely recognized.
   大家知道，嚼口香糖是有好处的。