2. 8. Your appendix might not be a useless evolutionary byproduct after all. Unlike your wisdom teeth, your appendix might actually be serving an important biological function - and one that our species isn't ready to give up just yet.
4. vt. 插于，刺入，竖起<
5. President Xi Jinping is also a well-known football fan, who has repeatedly voiced his support for the sport's development in China.
6. "Forty percent of Donald Trump's fortune is tied up in Trump Tower and eight buildings within one mile of it," according to the magazine. "What happens in that micromarket does more to affect the net worth of Donald Trump than anything else in the world. Lately, the neighborhood has been struggling (relatively speaking)."