2. "Migration should be an option, a choice. But for 200 million people, it's a necessity," he told the Thomson Reuters Foundation in a phone interview.
5. n. 补给，供给，供应，贮备
6. According to Brandi Bennett at HostGator.com,maintaining a blog on a well-hosted website, or volunteering your time and skills, shows instead of tells the community, and thereby builds expertise and trust.