A neon sign flashed on and off above the door.

门上方霓虹灯忽明忽暗地闪烁着。

《牛津词典》

If the light flashed on and off several times, the dolphins were supposed to press the left-hand lever followed by the right-hand one.

如果灯亮了又灭了好几次，海豚就应该先按左手的杠杆，再按右手的杠杆。

youdao

Sparks were emitted from small black boxesand red lamps flashed on and off angrily.

小黑盒子里迸出火花，红色灯泡发怒似地忽明忽暗。

youdao

Details about the student, who worked part-time selling refreshments at Manchester United, were flashed on the pitch-side digital advertising board and there was an announcement before kick off.

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Shane Watson's impressive line and length continued to unsettle Tendulkar, who flashed wildly at a ball outside off stump and was fortunate to escape after being struck on the pads.

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