委婉地拒绝一个吃饭的邀请的英文

decline an invitation to dinner

• 委婉:    mild and roundabou ...
• 地:    the earth
• 拒绝:    refuse; reject; tu ...
• 一个:    one; a; an
• 吃饭:    eat; have a meal
• 的:    4次方是 The fourth po ...
• 邀请:    invite