501总吨至2000总吨的部分，每总吨增加500计算单位；
Property prices have been relatively steady over recent months, although borrowing costs have been harder to predict.
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References & Citations。heLLoword翻译官方下载对此有专业解读
In the Air Force, she stood out from the crowd and was selected to join the astronaut programme. She was to fly Space Shuttles - Nasa's reusable "space planes".