Many students signed up for the race in the sports meeting.A. 400-meter-longB. 400-meters

发布时间：2020-08-16 13:06:39


Many students signed up for the      race in the sports meeting.
A. 400-meter-long
B. 400-meters-long
C. 400 meter long
D. 400 meters long

网友回答

A. 400-meter-long
B. 400-meters-long
C. 400 meter long
D. 400 meters long
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