Premaxillary bone
[医] 切牙骨, 门齿骨
🧩 词语组成解析
a. 前颌骨的, 颌骨前的
bone
[bon]
n. 骨头;尸骨;骨质物;有…样的骨头的;
vt. 挑鱼刺，剔骨头;剔去…的骨;
vi. 苦学;专心致志;
🗣️ 情景例句
Oh no! It's five thirty.
哎呀 已经五点半了。
A wise head makes a close mouth.
智者寡言。
You are never too old to learn.
活到老，学到老。