“流通”造句

商品现在可以在欧盟各国自由流通
Merchandise can now circulate freely among the EU countries.

她的房子光线充足,空气流通,清新整洁。
Her house is light and airy, crisp and clean.

矿井中用钢制通风机来保持空气流通
The pit is ventilated by a steel fan.

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