Pump /p?mp/ 打气筒

　　A bike pump is necessary if you travel long distance.

　　如果长时间骑车的话，那么打气筒就很有必要。

　　Tire /ta?r/ 轮胎

　　I've got a flat tyre (= the air has gone out of it).我的车胎没气了。

　　Pedal /?ped.?l/ 踏板

　　I could stand up on the pedals of my bike when I was 5 months old.

　　我5个月的时候就可以站在自行车的踏板上。

　　Brake 刹车，车闸

　　She had no brakes on her bicycle.

　　她的自行车没有车闸。

　　Chain /t?e?n/ 链条

　　You'd better take care of your chain of your bike to work properly.

　　车子得正常运转，你最好保养好链条。