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If you want to avoid traffic jam, you can travel by underground.
如果你想避开交通拥堵的话，你可以乘地铁出行。
youdao
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The construction of underground railways has eased traffic pressure on the ground.
地下铁道的修建减轻了地面交通的压力。
youdao
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The construction of underground railways has eased traffic pressure on the ground.
地下铁道的修建减轻了地面交通的压力。
youdao