20秒记一个单词（第556个）invitation?

invitation /?nv?'te??(?)n/ n.(外表或书面的)约请:

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Tommy-音频invitation.mp30:27来自Tommy教你说美语

例句/词组:

an invitation to the party

到场晚会的请帖

英语表明：

a spoken or written request to sb to do sth or to go somewhere (外表或书面的)约请: