JOHN DUNLOP had a son who complained that his bicycle was bumpy to ride. So he invented the pneumatic tyre in 1888.
约翰邓禄普的儿子曾抱怨地面崎岖不平难以骑行，之后他在1888年发明了气胎。
JOHN DUNLOP had a son who complained that his bicycle was bumpy to ride. So he invented the pneumatic tyre in 1888.
约翰邓禄普的儿子曾抱怨地面崎岖不平难以骑行，之后他在1888年发明了气胎。
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