Elementary knowledge
基本知识
🧩 词语组成解析
🗣️ 情景例句
Yes, I've been there a number of times.
我去过许多次了。
I know the boy whose father is a pilot.
我知道那个男孩的父亲是飞行员。
As there were strange marks on the X-ray plates taken of the mummy, doctors have been trying to find out whether the woman died of a rare disease.
由于在给这个木乃伊拍摄的X光片子上有点奇怪的斑点，所以，医生们一直试图搞清这位妇女是否死于一种罕见的疾病。