endless chain log haul-up

例句：

1. 1. The team worked tirelessly to build an endless chain that would last for generations.
   团队不懈努力地建造了一条可以持续几代人的无尽链条。
2. 2. The engineer had to haul up the logs from the riverbank to the factory.
   工程师不得不把木头从河岸拖到工厂。
3. 3. The endless chain of events led to a series of unfortunate accidents.
   一系列不幸的事故是由一连串的事件引起的。