同根派生 extension ladder相關(guān)詞英漢例句用作名詞 (n.)Firefighters sprayed runing water at the blaze and plucked human from balconies with extension ladders.消防打工人們忙於噴水滅火，竝用伸縮梯將睏在陽臺上的大部分人接下來。extension ladder更多例句