Mantle dentin
[医] 罩牙[本]质
🧩 词语组成解析
mantle
['mæntl]
n. 覆盖物;幕;披风;斗篷;
vt.&vi. 覆盖;
n. 牙质\\n[医] 牙[本]质
🗣️ 情景例句
Bicycle theft is on the increase in the big cities.
大城市里盗窃自行车的案件与日俱增。
The country is rich in natural resources.It has mineral deposits.
这个国家有丰富自然的资源。它有很多的矿床。
He had had a long and uncomfortable trip, for he had been confined to the wooden box for over eighteen hours.
他经历了一次漫长而又难受的旅程，因为他在那木箱里闷了18个多小时。