For centuries, people on sea voyages washed their clothes by placing the dirty laundry in a strong cloth bag, then toss it overboard, and let the ship drag the bag for hours.
Forcenturies, peopleon sea voyages washed their clothes by placing the dirty laundry in a strong cloth bag, then toss it overboard, and let the ship drag the bag for hours. A. then toss it overboard, and let B. then toss them overboard, and they let C. tossing it overboard, and letting D. tossing them overboard, and let E. tossing it overboard, and let
我的疑问是,placing the dirty laundry in a strong cloth bag, tossing it overboard, and letting……,这三个短语明显有一个时间的前后顺序啊,为什么在tossing之前不需要加then呢?因为加了就会不简洁么? 谢谢CDers