不適宜由我說出他離開的原因。
It's not for me to say why he left.
為勢所迫，他不得不離開這個國家。
He had to leave the country through force of circumstance.
罪犯正離開現場時，警察逮住了他。
Police collared the culprit as he was leaving the premises.
我離開的時候他們都還在努力工作。
When I left they were all still hard at it.
據信那對夫婦已經離開了這個國家。
It is believed that the couple have left the country.