1.A Russian billionaire has attended his inauguration as leader of humankind's first ever nation in space.
inauguration 就職典禮
Everyone watched the inauguration of the new president.
每個人都觀看了新總統的就職典禮 。
2.Around 200,000 people have signed up to claim their Asgardian nationality.
sign up 簽約;報名參加
I waited an hour to sign up for a distance-learning course.
為了注冊遠程教學課程,我等了一個小時 。