Drivers must be on the alert for traffic signals.
驾驶员必须密切注意
。
；讯，指挥
Drivers must be on the alert for traffic signals.
驾驶员必须密切注意。
The traffic signal lamp provided by the invention ensures that people with achromatopsia can also identify the traffic signals.
本发明提供的，使得了色盲症的人也能
。
The traffic signal lamp of the important composition part controlled as the traffic should internationalize too.
作为控制的重要组成部份的也应国际化。
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