Unilineal
a. 单系（指父系或母系）的
🗣️ 情景例句
Yes, he makes house calls, but the doctor has an opening only after 2:00 p.m.
好，他愿出诊，但他在下午2点后才有空。
You'll break your neck, if you don't take care.
你不专心的话，就会弄断你的脖子。
It had a head like a horse, big blue eyes, shining silver skin, and a bright red tail.
它长着一个像马一样的头，有着大的蓝眼睛和闪闪发光的银色皮肤，还有一条鲜红色的尾巴。