On one side of the main entrance there's a red plaque.大门口的一侧有块红色的匾额。There was a cycle path running along this side of the wall, right at its base...在墙的这边,沿着墙根有一条自行车道。In many towns parking is allowed only on one side...
Since 1908, chlorine has been added to drinking water.自1908年以来氯就被添加进饮用水当中。Chlorine is used to disinfect water.氯用来给水消毒。Chlorine is added to kill bacteria.加氯是为了杀死细菌。...