Students have played an important role in the past, but for the moment, they're on the margins.学生过去曾经发挥了重要的作用，不过现在他们变得无足轻重了。The female role has been downgraded altogether in the drive for greater equality.在争取更多平等的运动...
他把小麦茬子堆在了田埂边上.He piled the wheat stubble along the ridge of the fields.我们坐在田埂上休息.We had a rest on the ridges.蜘蛛在稻田的密度在田埂种豆或蓄草条件下增高.When field bunds which planted soybean or kept weeds, spiders density increased in rice f...