他们都是多产的饲养员，养的母鸡很多都可以下6个蛋之多。They are prolific breeders, with many hens laying up to six eggs.他是个非常多产的作家。He is a stupendously swift writer.他真是一位多产的小说家.He is really a fruitful novelist....
The BBC has just successfully demonstrated a new digital radio transmission system.英国广播公司刚刚成功地演示了一套新的数字无线电传输系统。The transmission began with a recitation from the Koran.节目一开始是一段《古兰经》朗诵。the transmission of the disease这种疾病的传...