1、The backyard is completely shadeless, making it difficult to sit outside during the day.
后院完全没有遮阴处，白天难以坐在外面。
2、Without any trees or buildings nearby, the empty field felt shadeless under the scorching sun.
附近没有任何树木或建筑物，空旷的地块在炎热的太阳下感觉没有一丝阴凉。