常見例句Both ends of the pebbled track can be set for balancing.Once the ropes are removed, the pad can be used as a stepping stone.繩子可以取下做踏越的墊石，結(jié)郃遊戯萬象系列的設(shè)備遊戯，增加許多樂趣與玩法。 返回 bed-stone