B2 a chair hanging on two ropes that children sit on and swing backwards and forwardsB2 a chair hanging on two ropes that children sit on and swing backwards and forwards
качели
go back and forth; swing back and forth between two states or conditions jump的用法和样例:例句用作名词(n.)Ifgo back and forth; swing back and forth between two states or conditions jump的用法和样例:例句用作名词(n.)If
如果马拒绝跳跃,是要扣分的。
change direction with a swinging motion; turn;"swing back"change direction with a swinging motion; turn;"swing back"