“交替的”用英语怎么说？

眼下，我们正处于秋冬交替的时候。Right now we are in the changeover period between autumn and winter.那是晴雨天交替的一周.That was a week of alternate rain and sunshine.如果低地必须用于种植豆类作物, 就必须把地整成交替的垄和沟.If low lands must be used for the bean crop, the...