教孩子们如何骑自行车

confidence - n. a feeling that you can do something well

booster - n. something that helps or encourages someone or something

brake - n. a device for slowing or stopping

chain - n. a series of metal links that are connected and used for moving a bicycle

pedal - n. a lever that you push with your foot to move a bicycle

allow - v. permit

properly - adv. in a way that is accurate or correct

accomplishment - n. something done or achieved successfully

lacrosse - n. an outdoor game in which players use long sticks with nets for catching, throwing and carrying the ball