You are welcome to cover this event upon invitation.
欢迎大家应邀采访报道此次活动。
You are welcome to attend and cover the forum upon invitation.
欢迎届时凭邀请参与论坛并采访报道。
Of course, there is nothing intrinsically dishonorable in the offering of advice upon invitation.
当然，从本质上说应邀为他人提供建议没有什么可丢人的。
You should not have taken it upon yourself to accept the invitation for the whole group.
你不该自作主张代表全组接受邀请。
You should not have taken it upon yourself to accept the invitation for the whole group.
你不该自作主张代表全组接受邀请。
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