坚持的

Born in 1879 in Ulm, Germany, Albert Einstein was two years old when his parents moved to Munich, where his father opened a business in electrical supplies.

阿尔伯特·爱因斯坦于1879年出生在德国的乌尔姆城。在他两岁的时候，父母移居慕尼黑。他的父亲在慕

China has been stepping up oversight of the industry.

中国已经加强了对这一行业的监管力度。