1. attack by storm; attack suddenly. 
   急风暴雨式地进攻；突然进攻。
2. They attempted an attack by night. 
   他们企图夜袭。
3. The offspring produced at one birth by a multiparous mammal. 
   幼仔一胎多子的哺乳动物一胎所产的后代
4. The first milk secreted by a mammal, especially a cow, after parturition; colostrum. 
   初乳哺乳动物分娩后最初分泌的奶，尤指牛；初乳
5. To accustom(the young of a mammal) to take nourishment other than by suckling. 
   使断奶使（幼年哺乳动物）习惯于不吃奶而获得养料

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