The blind need the guide dogs that are schooled in obedience.

盲人们需要那些训练得很听话的导盲犬.

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Guide dogs have to be smart.

引路狗必须聪明.

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Guide dogs were first trained after World War I when many soldiers returned home sightless.

一战之后许多士兵由于失去视力而返回家园,这时候开始了对导盲犬的训练.

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Dogs are not permitted either inside or outside the building, with the exception of guide dogs.

除了导盲犬,不允许狗待在这幢楼内或楼外.

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