The mother sang her baby a lullaby.妈妈给孩子唱了一支催眠曲.She gently crooned a lullaby.她轻声哼唱了一支摇篮曲。Through his tears and grief, the song came , and throaty lullaby.深情嘶哑的摇篮曲在祖父的眼泪与悲伤中传出.Through his tears and grief, the song, a and ...
碳、氢、氧化合形成碳水化合物和脂肪。Carbon, hydrogen and oxygen combine chemically to form carbohydrates and fats.5月份工程师们在一条氢燃料管线上发现一条裂隙。In May engineers found a leak in a hydrogen fuel line.氢与氧化合成水。Hydrogen and oxygen combine to form wat...