n.象牙質(zhì)；齒質(zhì)

Dentine : the bony material of the tooth, living. 齒質(zhì):構(gòu)成牙的主體

Got mental when he saw the dentin his new car. 他因看到自己新車上的凹痕而生氣。

Please strike up a dentin the medal(of a fender). 請?jiān)?防護(hù)板的)金屬上敲出凹痕。

At least made a dentin the work. 至少在這項(xiàng)工作上取得了一點(diǎn)兒進(jìn)步。

The loss put a dentin the team's confidence. 這失敗給全隊(duì)的信心投下了陰影。

The underlying layer, called dentin, is more yellow. 其下面層，稱為牙本質(zhì)，稍微顯黃色。