使用时注意几个坑：依赖版本、synchronized 锁、ThreadLocal 串数据，提前规避。
Gilt market slump deepens as traders bet on Bank of England rate rise
，这一点在新收录的资料中也有详细论述
'properties': {，更多细节参见新收录的资料
At least 15 killed after military plane carrying banknotes crashes in Bolivia
Don’t meddle in our elections, EU’s Metsola tells Trump’s MAGA warriors
· 黄磊 · 来源：tutorial导报