{"family uintatheriidae":{"translation":"[网络] 家U鱼科","word":"family Uintatheriidae"},"family ulmaceae":{"translation":"[网络] 榆科","word":"family Ulmaceae"},"family ulvaceae":{"translation":"[网络] 石蓴科","word":"family Ulvaceae"},"family umbelliferae":{"translation":"[网络] 繖形科","word":"family Umbelliferae"},"family unionidae":{"translation":"[网络] 蚌科","word":"family Unionidae"},"family unit":{"phonetic":"ˈfæmili ˈju:nit","translation":"[医]家系单位","word":"family unit"},"family upupidae":{"translation":"[网络] 戴胜科","word":"family Upupidae"},"family uranoscopidae":{"translation":"[网络] 家族Uranoscopidae","word":"family Uranoscopidae"},"family ursidae":{"translation":"[网络] 熊科","word":"family Ursidae"},"family urticaceae":{"translation":"[网络] 荨麻科","word":"family Urticaceae"},"family usneaceae":{"translation":"[网络] 家庭菊科","word":"family Usneaceae"},"family ustilaginaceae":{"translation":"[网络] 黑粉菌科","word":"family Ustilaginaceae"}}