The population is increasing at about 6% per year.

　　人口以每年約6%的速度增加。

　　They have increased their share of the market by 10%.

　　他們將其所占的市場份額增加了10%。

　　We've been given a 2% pay increase.

　　我們獲得了2%的加薪。

　　Trade between the two countries has increased.

　　兩國之間的貿(mào)易增長了。

　　Teaching loads have increased in all types of school.

　　各種學(xué)校的教學(xué)工作量都增加了。