同根派生 Silurian period相關(guān)詞英漢例句Ancient plant in the early Paleozoic marine mainly to the late Silurian Period, the original plants begin boarding land.古植物在古生代早期以海生藻類為主，至志留紀(jì)末期，原始植物開始登上陸地。Silurian period更多例句