1. He left the major portion of his money to the foundation.
    他将大部分钱留给了这个基金会。

2. Advocates for the poor want the companies building the data highway to devote a portion of their profits to insuring universal access.
    维护穷人权益的人士希望这些正在建设数据高速公路的公司能够将其利润的一部分用于此项技术的普及。

3. Central Africa, the most tropical portion of this tropical continent, is a land of heavy rainfall and high plateaus.
    中部非洲是这块热带大陆上最热的地区，雨量充沛，地势很高，

4. It added that "the amount of the loss will depend on attendance and hotel use rates achieved during the remaining portion of the critical European summer vacation period".
    还说"亏损的程度将取决于关键的欧洲夏季假期里剩余日子所能带来的游客量和宾馆入住率。"