If you interview an instructor and it appears he's afraid to admit when he obviously doesn't know the answer to something, that should activate red flashing lights and buzzers .

当你面试一个教练的时候，如果他对于不懂的问题表现得很慌张并不愿承认，那么你该亮起红灯把他排除在你选择之列了。

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Pay attention to the flashing lights on the bus, and stop when the lights are red and the STOP arm is extended.

注意车上的闪光灯，如果红灯亮了或标记停止的手臂伸出的话立刻停车。

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Ireland, Iceland and Latvia emerged with red lights flashing.

结果显示，爱尔兰、冰岛和拉脱维亚都亮起了警灯。

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The failures are indicated by three red flashing lights on the console.

BBC: NEWS | Business | Microsoft facing $1bn Xbox bill

With exogenous red-lights flashing brightly in the euro zone, demand for the dollar is building.

FORBES: Dollar Soars As Euro Snores

Focused on trying to steer the economy, Greenspan ignored the flashing red lights, as did his successor, Ben Bernanke.

FORBES: Magazine Article