1
chew gum
口香糖常与'chew'搭配使用。
He likes to chew gum while studying.
他喜欢在学习时嚼口香糖。
口香糖
gums — plural of gum
先理解核心含义，再看它在真实句子里的用法。
口香糖
Chewing gum.
He likes to chew gum while studying.
他喜欢在学习时嚼口香糖。
牙龈
The flesh around the teeth.
植物分泌的黏性水溶性碳水化合物,干燥后变硬,或植物渗出物中的此类物质
A viscous water-soluble carbohydrate exudate of certain plants that hardens when it becomes dry, or such a substance as a component of a plant exudate.
一种用于咀嚼的制品,通常由加糖的糖胶树胶制成
a preparation (usually made of sweetened chicle) for chewing
任何类似天然树胶的黏性或胶粘物质
Any viscous or sticky substance resembling the true gum.
The teacher told him to spit out his gum.
老师让他把口香糖吐出来。
I always keep a pack of gum in my bag.
我总是在包里放一包口香糖。
Would you like a piece of gum?
你想要一片口香糖吗？
口香糖常与'chew'搭配使用。
He likes to chew gum while studying.
他喜欢在学习时嚼口香糖。
My gums bleed when I brush too hard.
我刷牙太用力时牙龈会出血。
树胶通常指植物分泌的胶质物。
Gum from the acacia tree is used in food.
金合欢树胶用于食品中。
Not this
Can I have a gum?
Use this
Can I have a piece of gum?
中文学习者常将‘gum’（口香糖）视为可数名词，错误地在其前直接加不定冠词‘a’。实际上，‘gum’作‘口香糖’解时为不可数名词，需要用量词‘a piece of’或‘a stick of’来修饰。
Not this
My gum hurts when I brush my teeth.
Use this
My gums hurt when I brush my teeth.
中文中‘牙龈’没有单复数之分，但在英语中，‘gum’指牙龈时通常使用复数形式‘gums’。该句误将‘gums’用作单数，导致语法错误。正确的表达应使用复数。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
嚼口香糖
It's impolite to chew gum in class.
在课堂上嚼口香糖是不礼貌的。
牙龈疾病
Regular brushing can prevent gum disease.
定期刷牙可以预防牙龈疾病。
橡胶树；桉树
The koala feeds on leaves of the gum tree.
考拉以桉树叶为食。
把事情搞砸，使工作受阻
His constant questioning gummed up the works during the meeting.
他不断的提问使会议进展受阻。
陷入困境
If we miss this deadline, we'll be up a gum tree.
如果我们错过这个截止日期，就会陷入困境。
我不嚼口香糖。
In the movie Pulp Fiction, Mia Wallace says, 'I don't chew gum.'
在电影《低俗小说》中，米娅·华莱士说：‘我不嚼口香糖。’
Use gums naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
口香糖、牙龈、树胶都叫gum，联想嚼口香糖时牙龈粘上树胶，黏黏的。
口香糖：多用于日常休闲和非正式场合，中性色彩。
注意：作'口香糖'意时通常不可数，作'牙龈'意时常用复数gums
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.