What do your grandparents do?
Where are you working
What does that man do?
I'm working in a park of Beijing.
They are working for the United States.
I have a helicopter .
exception 例外的
susceptible易受影响的
concept 概念
conceive 设想
perceive 察觉
receive 收到
recipe 食谱
principal 参与
occupy 占据
capacity 容量