racing bike
noun [ C ] uk/ˈreɪ.sɪŋ ˌbaɪk/ us/ˈreɪ.sɪŋ ˌbaɪk/ (also racer)
比赛用自行车
a bicycle designed for speed, with a light frame and handlebars that curve downwards so that the rider's back is parallel to the ground
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