Electricians at work on an airport runway in Ontario, Calif. Frequent outdoor work, regardless of the weather, is a feature of the career. Watchara Phomicinda—MediaNews Group/The Press-Enterprise/Getty Images
美國仍然是全球最強大的軍事力量，其常規武器庫存也比任何其他國家都更為龐大。
，更多细节参见体育直播
on GitHub should switch to using os.path.commonpath().
Go to BBCAfrica.com for more news from the African continent.