请问这个英语句子对吗 Water,which is of great importance on earth,neede

请问这个英语句子对吗 Water,which is of great importance on earth,neede conservation of water is of great importance in desert areas 这个句子对吗 What we should konw is the importance of knowledge. Confident is of great importance! English is of great importance 一简单英语句子求解析句子：Getting up early is of great importance to us a Why the water is the origin of life on earth? there is a lot of water on the Earth 英语句子提问1Earth-97% of its supply is salty ocean water,and not 2.About two thirds of Earth is covered by water.用英语 句子解释是什么 the meeting is (of great importance )请问为什么括号里的不能换成 great imp ___with ,the course is of great importance.