Dogs are social animals and without proper training, they will behave like wild animals.
狗是群居动物，如果没有适当的训练，它们的行为就会像野兽一样。
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How are we ever going to win anything at the Inter School Athletics without proper training?
如果没有适当的训练，我们怎么能在校际田径比赛中获胜呢？
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