常見(jiàn)例句Doctor Peko Pecoul says his organization is supporting a study in Tanzania to see if the new drug could be successfully used in Africa. 瘧疾是由蚊蟲(chóng)叮咬傳播給人類(lèi)的寄生蟲(chóng)引起的。竝且每年發(fā)生5億感染。 返回 Peko