1·Chagas disease was once entirely confined to the Region of the Americas - principally Latin America - but it has now spread to other continents.
恰加斯病曾经完全局限于美洲区域——主要是拉丁美洲，但现在已传播到其它各大洲。
2·Thailand is by far the largest buyer of Burmese exports (principally gas).
迄今，泰国是缅甸出口商品（主要是天然气）的最大购买方。
3·In recent years Prudential has expended in key markets, principally the United States and Asia.
最近几年，保诚在关键市场中扩展，主要是在美国和亚洲。
4·A strong PN-1 signal was observed in advanced lesions, principally in intraplaque hemorrhage-related structures.
一个强有力的PN- 1信号可以在严重的损伤中观察到，主要是在胸膜内的出血相关结构。
5·Being a woman is a terribly difficult task, since it consists principally in dealing with men. — Joseph Conrad.
做女人难，因为主要是和男人打交道。——约瑟夫·康拉德。