Precocious puberty refers to the early development of secondary sex characteristics. In girls, this is before the age of 8-years-old.
Can South Africa’s national unity government succeed?
南非的全国团结政府能成功吗?
Unrelenting Heat Stifles Millions of Americans for 3rd Consecutive Day
持续的高温让数百万美国人受影响,已经第三天了
Technology Quarterly
Science
Business