At this juncture, I would like to make an important announcement.
此時此刻我要宣佈一項重要的`事情。
And finally, I would like to thank you all for coming here today.
最後，我感謝大家今天的光臨。
I would like to express my gratitude to everyone for their hard work.
我要對所有辛勤勞動的人表示感謝。
Lastly, I would like to thank my parents for all their support.
最後，我想感謝父母對我的全力支援。
On a more personal level, I would like to thank Jean for all the help she has given me.
從較為個人的角度我願感謝瓊給予我的一切幫助。