1. The low land should be ridged before they are used. 低地在使用前应先整成交替的垄和沟。
2. To produce a ridge around the edge of (a coin). 在（钱币）边上印制一圈凸起的边。
3. We drove up a hillside and finally stopped on a high ridge . 我们沿着山腰往上开，最后停在一个高高的山脊上。
英英解释
n.
1. a long narrow natural elevation or striation
2. any long raised strip
3. a long narrow natural elevation on the floor of the ocean
4. a long narrow range of hills
5. any long raised border or margin of a bone or tooth or membrane
6. a beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment v.
1. extend in ridges
2. plough alternate strips by throwing the furrow onto an unploughed strip
3. throw soil toward (a crop row) from both sides
4. spade into alternate ridges and troughs
5. form into a ridge
