There are nine hundred students in my school.

　　我的學校有九百名學生。

　　If you are lonely, call the nine hundred number.

　　如果你覺得孤獨，打900。

　　The area of this flat is around nine hundred square feet.

　　在太古城每平方英尺港幣五千塊的售價是很吸引人的。

　　Over nine hundred dollars they had cost him!

　　他為這套工具花費了900多美元。

　　Estimates are between five hundred billion and nine hundred billion dollars.

　　估計其價值在五千億美元至九千億美元之間。