clovern.三叶草；苜蓿cloverleaf knot苜蓿叶纽结, 三叶纽结; 单节症cloverleaf fold三叶草型折叠Clover potyvirus克罗地亚三叶草马铃薯Y病毒clover leaf knot苜蓿叶纽结, 三叶纽结,单节症clover harvester三叶草收获机cloverleaf model苜蓿叶式[立体]模型clover leaf tRNA三叶草型tRNACloverleaf plate三叶草钢板cloverleaf sling三头悬带clover-disease[医] 香草木樨中毒, 三叶草病(牲畜)