康明斯电喷发动机:英文演讲的时候,在座的都是老师或上司,该怎么称呼啊?
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respected teachers and collegues.
LADIES AND GENTLEMEN
THACHERS AND senior
GENTLEMEN AND LADIES /
LADIES AND GENTLEMEN
respected teachers and collegues.
LADIES AND GENTLEMEN
THACHERS AND senior
GENTLEMEN AND LADIES /
LADIES AND GENTLEMEN