TASK DEFINITION: In this task, given a sentence in the English language, your task is to convert it into the Chinese language.
PROBLEM: Political activist Ralph Nader has announced the launch of an independent campaign for President of the United States.

SOLUTION: 政治活动家拉尔夫·纳达尔宣布，其将独立竞选美国总统。

PROBLEM: In addition, the Azure Travel coach, like all Egyptian tour buses, had at least one armed police officer travelling on board.

SOLUTION: 此外，与所有埃及旅游大巴一样，Azure旅游大巴上至少有一名武装警察。

PROBLEM: As investigations continue, all bodies have been removed from the sub-surface Circle line trains, but the carriages themselves are still in situ while a painstaking forensic investigation takes place.

SOLUTION:
随着调查的继续，所有尸体都已从地下环线列车上运走，但车厢本身仍在原地，目前正在进行艰苦的法医调查。