There was a time when seatbelts in cars were optional. Airbags, too, were once considered a luxury, reserved for high-end models. Now, we wouldn’t think of driving without them.
曾幾何時，汽車上的安全帶是可選的配置。安全氣囊也曾被視為高端車型的奢侈專供。而現(xiàn)在，沒有這些東西，我們根本不敢開車。
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