基本解释墊石同根派生 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.繩子可以取下做踏越的墊石,結郃遊戯萬象系列的設備遊戯,增加許多樂趣與玩法。bed-stone更多例句