each year是什麼時態

each year的`用法

（1）Each year, hundreds of animals are killed in this way.

每年都有數百隻動物被這樣殺掉。

（2）Each year more than two million household injuries need medical attention.

每年有超過200萬起家中受傷事件需要醫療處理。

（3）When his cows calve each year he keeps one or two calves for his family.

他的母牛每年產犢時，他都給自家留上一兩頭。

（4）A million young people enter the labour market each year.

每年有100萬年輕人進入勞動力市場。

（5）The Wall Street Journal uses 220,000 metric tons of newsprint each year.

《華爾街日報》每年用去22萬公噸新聞紙。