Superb systems of communication by air, sea and land make it possible for us to visit each other's countries at a moderate cost.
有了一流的空中、海上和陆地交通系统，我们就能够以低廉的费用访问彼此的国家。
This true-color image captures such a bloom in the Ross Sea on January 22, 2011, as viewed by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Aqua satellite.
这幅真彩图像所摄正是从美国宇航局“阿卡”卫星上的中分辨率成像光谱仪上观察到的2011年1月22日出现在罗斯海的一次水华。
Moderate and weak active belt in shelf sea and intercontinental sea.
陆架海中等活动和弱活动带。
Moderate and weak active belt in shelf sea and intercontinental sea.
陆架海中等活动和弱活动带。
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