良種 improved variety: 改良品種; 經(jīng)過改良的種子improved seed: 改良過的種子breeding improved variety: 選育良種genetically improved seed: 遺傳改良種子improved: 改進(jìn)的; 改良的; 經(jīng)過整治的下載手機(jī)詞典可隨時隨地查詞查翻譯