Cemental fibers
[医] 牙骨质纤维
🧩 词语组成解析
a. 白垩质的
n. 纤维（fiber的复数）
🗣️ 情景例句
Mr. Stewart, I just spoke to Mr. Carlson. Stewart
先生， 我刚刚与Carlson先生通了话。
If the ox falls,whet your knife.
牛一倒，快磨刀；人遭难，众人踩。
She always referred to them as 'the shifting population', for they came and went with such frequency that I never even got a chance to learn their names.
她称这些佣人叫“流动人口”，因为他们来匆匆，所以我甚至都没有机会知道他们的姓名。