Ellen is walking down the drive with a square flat box balanced on one hand.
埃伦正沿着车道走着，一只手上托着一个扁平的方盒子。
First, drive slowly to a stretch of flat, firm road that's out of traffic.
首先，将车慢慢到车流外一片平坦、坚实的公路带。
High quality flat belts drive; high efficiency; low noise.
优质平面皮带传动。高效率，噪音低。
High quality flat belts drive; high efficiency; low noise.
优质平面皮带传动。高效率，噪音低。
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