Acute appendicitis usually develops without relation to the ingestion of food.急性阑尾炎的发生通常与饮食无关.Septicemic listeriosis probably develops from ingestion or possibly inhalation of the bacteria.败血性李氏杆菌病可能是因食入或吸入病原菌引起的.The pro...
她成了一名专业的女中音歌手。She became a professional mezzo-soprano.女歌手分为女高音 、 女低音和女中音.Female singers are classified as sopranos, mezzo - sopranos and contraltos.她可是很优秀的 女中音 哦!She is an excellent mezzo - soprano ....