我把外发邮件投进了蓝色邮筒。

I deposited the ___outgoing mail in the blue mailbox.

即将离任的主席在年会上发表了告别演说。

The ___outgoing chairman gave a farewell speech at the annual meeting.

机场网站上列出了所有进出港航班。

The airport's website lists all incoming and ___outgoing flights.