H spent three hours learning Lincoln's Address at Gettysburg by heart.他花了三小时把林肯的《葛底斯堡讲话》背了下来。He lives about 60 miles upstream from Oahe, near Gettysburg, South Dakota.他住在奥阿希湖上游约60英里处，靠近南达科他州的葛底斯堡。Your friend already...
The window frames had begun to warp.窗框已经开始变形。There is a warp in this record.这张唱片有点翘曲变形了.The shuttle moves backwards and forwards through the warp.梭子在经线中来回移动....