Cemental decay
[医] 牙骨质腐蚀
🧩 词语组成解析
a. 白垩质的
🗣️ 情景例句
Her health is improving markedly.
她的健康正显著好转。
News is like fish.
新闻就像鱼，过后不新鲜。
If we remain inveterate smokers, it is only because we have so often experienced the frustration that results from failure.
如果我们烟瘾大，戒不掉，那是因为屡戒屡败，失去信心。