The student is invited to test each item for himself by means of specific techniques.邀请学生们采用特定的技术自己去测试每个项目。An auctioneer, at the moment of non - sale, should be required to state plainly to his audience that an item has ...
The melting ice caused a rise in sea level.冰川消融造成海平面上升。We're probably at an elevation of about 13,000 feet above sea level.我们可能在大约海拔13,000英尺的高度。The whole place is at sea level.整个地区与海平面齐平。...