People who take less exercise seem more vulnerable to illness.
缺少运动的人对疾病的抵抗力就差。
You must go to the moon. It's your duty.
你必须上月球去,这是你的职责。
In times of peace, when business was bad, Hawkwood and his men would march into a city-state and, after burning down a few farms, would offer to go away protection money was paid to them.