Mineral gum
[醫(yī)] 礦質(zhì)齦
?? 詞語(yǔ)組成解析
mineral
['m?n?r?l]
n. 礦物;礦石;礦物質(zhì);汽水;
adj. 礦物的，似礦物的;
gum
[ɡ?m]
n. 口香糖;樹(shù)膠;黏膠;牙齦;
vt.& vi. 膠合;涂以樹(shù)膠;使…有粘性;
??? 情景例句
And don't forget to invite Susan for dinner.
別忘了請(qǐng)Susan來(lái)吃晚餐。
The more a man knows, the less he knows he knows.
懂得越多，就越知道自己懂得不多。
She was sentimentally attached to this house,
她對(duì)這幢房子在感情上難舍難分。