seadog信件: letter; mail; missive前導(dǎo): lead the way; march in front ...程序: procedure胸導(dǎo)程, 心前導(dǎo)程: precordial leads胸前導(dǎo)程: chest leads; precordial leads下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
