8 June, 2010 联合国秘书长潘基文2010年世界海洋日致辞 2010年6月8 日 Oceans play a key role in our daily lives. They are integral to sustainable development and an important frontier for research. As
书信作文模板——邀请信 Dear ___ ,①There will be a ___(内容)at/in ___(地点)on ___(时间). ②We would be honored to have you there with us.③The occasion will start at ___(具体时间).
Marine life is a vast resource, providing food, medicine, and raw materials, in addition to helping to support recreation and tourism all over the world. At a fundamental level, marine life helps determine t
however. Smaller regions of the oceans are called seas, gulfs, straits and other names. Geologically, an ocean is an area of oceanic crust covered by water. Oceanic crust is the thin layer of solidified vo