pron. 改進 improved: 改進的; 改良的; 經(jīng)過整治的aerodynamically improved: 空氣動力改進的aerodynamically-improved: 空氣動力改進的be gradually improved: 日趨完善be increasingly improved: 日趨完善下載手機詞典可隨時隨地查詞查翻譯