BMX biking
01
BMX自行车运动, BMX自行车
a sport or activity involving racing or performing tricks on a small, sturdy bicycle called a BMX
例子
He started BMX biking when he was ten.
他十岁时开始玩BMX自行车。
BMX biking takes a lot of balance and control.
BMX自行车需要很多平衡和控制。



























