per year

1.My property was rated at 200 dollars per year.

我的财产估计缴税200美元。

2.The world urban population is rocketing upwards at a rate of 6.5 per cent per year.

世界城市人口以6.5％的速度急速上升。

3.One of the attractions is that a campaign to iodize salt costs only 2 cents to 3 cents per person reached per year.

碘盐吸引人的一个原因人只要花费2到3分就可以食用碘盐。

4.On the contrary, the double cropping rice followed by a cool-loving crop per year and the double cropping rice followed by a thermophilous crop per year are potential carbon sources.

而连作喜温作物和单()连作喜凉作物生态系统起着较稳定的碳源作用.