同根派生 anthracite coal相關(guān)詞英漢例句We should use anthracite to avoid air pollution.我們應(yīng)該使用無煙煤以防止空氣污染。Soft coal burns with more flames than hard coal.煙煤燃燒時(shí)火焰較無煙煤多。anthracite coal更多例句