空气 、 水 、 衣服、及昆虫都会成为疾病的传染媒介.Air, water, clothing and insects are all means of infection.这种疾病是通过昆虫媒介传播的.This disease is spread through the agency of insects.艺术可以用作为宣传的媒介.Art may be used as a vehicle for propaganda....
救援人员因风浪太大而被迫中断工作。The rescuers were beaten back by strong winds and currents.有13名男子因谋杀案受到盘问。13 men have been questioned in connection with the murder.他1977年因冒充警官而再次入狱。He was returned to prison in 1977 for impersonating a ...