黑色四叶草的英文怎么写

　　Black is out this year.

　　今年黑色不时兴了。

　　Use a black pen on white paper to ensure good reproduction.

　　用白纸黑笔，以确保复印清晰。

　　She's been in a really black mood all day.

　　她一整天都心情很坏。

　　Herds are fattening on the early clover.

　　家畜吃早春的苜蓿而上膘。

　　He inherited his father's fortune and has lived like a pig in clover ever since.

　　他继承了他父亲的财产，生活极为奢侈。

　　Experimental Study on the Underground Drip Irrigation Effect in Clover Field

　　苜蓿田间地下滴灌效应试验研究。