The only safe way to cross the road is to look both ways, ringt and left.
过马路唯一安全的方法是两边都要看,先右后左。
When you cross a street, look both ways-even in a one-way street. —Andrew Rooney.
当你过马路时,即使这是一条单向行车道,也得两边都要看一下。
The app USES the outward facing camera on a smartphone to help a pedestrian look both ways (or at least one way).
这项应用采用智能手机自带的外置摄像头帮助行人观察其左右两侧的路况(至少是一边)。
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