题目内容
As a(n) ________ and effective method, expressway noise barrier is a primary measure used to reduce traffic noise.
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Due to the reform and openingup, our living conditions, undoubtedly, have improved ________ over the past decades.
She said her ________ is enough to support her in later years and that her only hope is that her son can visit regularly. After all she had not much time left.
I hope that we will be able to make it through the tough times and back to the business of working together ________ our common goals.
Contrary to popular belief, the ants, hardworking ________ they are, have their time for play.
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