Premaxilla
n. 前顎骨\\n[醫] 切牙骨, 門齒骨
??? 情景例句
We live with my parents, Dr. and Mrs. Philip Stewart.
我們和父母住在一起 ，我父母是Philip Stewart夫婦。
What time do you get up every day?
你每天什么時間起床？
Before we had time to worry about what might happen, we were back on the plain again.
我們還未來得及擔心后果，車已重新開上了平地。