基本解释垫石同根派生 bed-stone相关词英汉例句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.绳子可以取下做踏越的垫石,结合游戏万象系列的设备游戏,增加许多乐趣与玩法。bed-stone更多例句