您要查找的是不是：
- Periodontal disease is a chronic bacterial condition associated with receding gums and tooth loss. 牙周病是一种慢性细菌感染性疾病，会引起牙床萎缩和牙齿脱落。
- Many people like to chew mint gum in the summer. 许多人喜欢在夏天嚼薄荷口香糖。
- Consisting of or containing gum. 树胶的由树胶组成的或包括树胶的
- Chewing gum on a train is not seemly in a lady. 淑女在火车上嚼囗香糖不太合适。
- The boy popped a piece of gum into his mouth. 那男孩把一块口香糖塞进嘴里。
- He was reading the newspaper, gum in mouth. 他一边嚼著口香糖一边看报。
- Can you gum this piece of wood on to the wall? 你能不能把这片木头黏到墙上去?
- receding gum 退缩龈
- The boys got wise to Jack's fondness for bubble gum. 孩子们识破了杰克喜欢吃泡泡糖的秘密。
- Floodwaters began receding in some areas of Kentucky. 洪水在肯塔基州的某些区开始退了。
- Covered or clogged with or as if with gum. 涂有树胶的用或似乎用树胶覆盖或填充的
- Do not gum up the work by telling mother what we are going to do. 别告诉母亲我们要干的事，那会把事情搞糟的。
- Frankincense is a type of sweet-smelling gum from a tree. 乳香是从树上提炼的一种有甜味的树脂。
- The receding tide stranded the whale. 退潮把鲸鱼搁浅在海滩上。
- A protruding or receding part in a surface or line. 凸出（或凹入）部分在一个表面或线条上凸出或凹入的部分
- Don't gum up the work by telling Mother what we are going to do. 别告诉母亲我们要干的事,那会把事情搞糟的。
- She watched his receding figure. 她看着他的身影渐渐远去。
- Memories of childhood are gradually receding. 童年的回忆渐渐淡漠了。
- He has some sore swellings on his gum or jaw. 他的牙床和下巴肿痛。
- And then his face was smooth, with a receding jaw. 而且他的面孔光润，颚骨下陷。
