littern.垃圾;杂乱;一窝(幼仔);褥草;轿子v.乱丢垃圾;弄乱;产(幼仔);用草等给动物铺窝
litter substrate quality凋落物基质质量
litter layer respiration枯枝落叶层呼吸
litter container with cowl有通风罩废物箱
litter mixed decomp sition凋落叶混合分解
litter the room with toys.乱丢玩具;把房间弄得乱七八糟.
litter transportation problem垃圾运输问题