In the farmyards , the chickens and even the pigs were too nervous to eat .
在农家大院里，鸡甚至是猪都紧张得不想进食。
Invited to china in 1977 to talk about his great discovery , a virus that caused hepatitis , and his greater invention , a vaccine to prevent it , he would slip out in the early mornings to run for hours through fields , farmyards or the just-stirring streets of beijing .
He marched us off through the rice fields balancing precariously on narrow dikes separating paddies of mud and dung and water right into the farmyards and courtyards of villages apparently untouched by much technical innovation since the water buffalo .
