同根派生 cover crop相关词英汉例句European vetch much cultivated as forage and cover crops.歐洲的一種野豌豆，通常被用來制草料和覆蓋作物。It is generally advantageous to sow pasture seeds with a companion grazing nurse crop.一般在播種草種時，同時播種放牧保護作物是有好処的。cover crop更多例句