刚好在450英尺的等高线之下有3个缓坡。There were three moderate climbs to just below the 450 feet contour.等高线是用等间距图解描述构造形态的.Contours are graphic expressions with uniform spacing depicting a structure's character.正射摄影象片一般不带像地图所表示的等高线....
从前我在一家纸烟店工作, 我对那里的工作很感兴趣.I used to work at a tobacconist's, and I found it quite interesting.他从衬衣口袋里取出一包纸烟.He took a pack of cigarettes from his shirt pocket.有的烟民不喜欢抽有滤嘴的纸烟.Some smokers don't like cigarettes wi...