main objectiveprimary target主要: main; chief; principal; majo ...目標(biāo): target; objective主要目標(biāo)區(qū): primary target area主要目標(biāo)線: primary target line主要目標(biāo)范圍: primary target area下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯