提示：点击例句中的单词，就可以看到词义解释

He was a guy who chewed gum all the time .

他是一个整天嚼着口香糖的家伙。

Elevated blood sugars increase the risk of developing gum disease .

升高的血糖增加了患牙龈疾病的风险。

Just what can gum do for your health ?

为什么口胶会对你的健康有益呢？

Sugarless yoghurt could help beat bad breath , tooth decay and gum disease , say scientists .

有科学家发现，无糖酸奶有助于缓解口臭、蛀牙和齿龈疾病。

May : do you know how many people chew gum everyday ?

阿美：你知道每天有多少人嚼口香糖吗？