短语词组短語to spur sb on 策勵spur you on 鼓勵你to spur on 敺使spur on to 敺使spur on the flying horse 快馬加鞭spur on a willing horse 無故加鞭spur on urge forward challenge 馬鞭子straight spur gear -on-gear pump 蓄水泵 返回 spur on