Mandibula
下颌骨
🗣️ 情景例句
My parents are expecting to see good grades this semester.
我父母希望我这个学期取得好成绩。
How long has it been since you've heard from your uncle?
自从你听到叔叔的消息有多长时间了？
No, they aren't.They are Norwegian.
不，他们不是丹麦人。他们是挪威人。