100 meter racetony won the boy's___race in the autumn sports meeting.用100 metre long ,100 metres 还是100-metre这种东西我老是搞混~我想的是选D,应该选那个?

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100 meter race
tony won the boy's___race in the autumn sports meeting.
用100 metre long ,100 metres 还是100-metre
这种东西我老是搞混~
我想的是选D,应该选那个?

100 meters long “100M长”,多指平常的长度.
100 meters race 专有名词“百米赛跑”
100-meter 复合形容词,“100M的”