automatic partition of letters信件: letter; mail; missive自動(dòng): voluntarily; of one's own ac ...自動(dòng)分揀機(jī): automatic sorting machine自動(dòng)分揀系統(tǒng): auto-sorting system自動(dòng)分類機(jī)，自動(dòng)分揀機(jī): automatic sorter下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
