block compare instruction

例句：

1. 1. The traffic blockcaused a long queue at the intersection.
   交通阻塞导致交叉路口排起了长队。
2. 2. Theconstruction workers had to block off the roadfor safety reasons.
   为了安全原因，工人们不得不封锁道路。
3. 3. The new law blocks foreigninvestors from investing in certain industries.
   新法律禁止外国投资者投资某些行业。