Rise of cities, risky behavior in westcentral Africa between 1884 and 1924 at root, study says.
研究称，随着城市的兴起，中非西部地区危险的行为也于1884年到1924年之间开始萌芽。
2
There is an interesting and unexplained anomaly in tamarack from northern localities in westcentral Canada.
中西加拿大的北部诸点的美国落叶松有一种有趣的难以解释的异常现象。
3
In the Westcentral Banks are happy to set interest rates for the economy as a whole, but prefer to let the market decide who should lend how much to whom.