Light travels faster than sound at the speed of 300,000 kilometres per second.
光速比声速要快，为每秒钟30万公里。
Electromagnetic waves travel with the speed of light, which is 300,000 kilometers per second.
电磁波，以光速传播，也就是30万公里，每秒。
We handle a wide range of light industrial products as per the list enclosed.
我们经营多种轻工产品，详见附表。
Light travels at a speed of 300,000 km per second.
光以每秒30万公里的速度传播。
At least once per month take your client out for a fresh juice or light meal after a session.
每月至少一次在课后带你的客户出去喝新鲜果汁或简单晚餐。
We handle a wide range of light industrial products as per list enclosed.
我们经营多种轻工业品，详见附表。
Bright yellow light, flashing a request per second.
灯亮时，要求每秒钟闪亮一次。
Single light-medium blue, three or more per peduncle.
单瓣亮到中蓝色花，每支花梗开3朵或更多的花。
Single light-medium blue, three or more per peduncle.
单瓣亮到中蓝色花，每支花梗开3朵或更多的花。
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