According to a fact sheet issued by the White House, the memorandum enforces the legal ban on U.S. tourism to Cuba by requiring mandatory record-keeping of all travel-related transactions for a ...

▲美国总统川普（Donald Trump）。美国总统川普（Donald Trump）才就职不到半年，支持率已开始下滑。爱默生学院（Emerson College Polling）的最新民调显示，45%受访者认可川普的执政表现，46%表示不认可，剩下9%则不 ...