The equator is an imaginaryline around the middle of the earth.
赤道是一条假想的环绕地球腰部的线。
《牛津词典》
2
The British assumed that carrying in sea level would extend an imaginaryline from the shore along Earth's curve to a point beneath the Himalaya.
英国人认为,如果提升海平面,会将假想的线从沿地球曲线的海岸延伸到喜马拉雅山下方的某个点。
3
The continental dividerefers to an imaginaryline in the North American Rockies that dividesthe waters flowing into the Atlantic Ocean from those flowing into thePacific.