The sightlines are good. Can you do it surrounded?

观众视线很好 如果观众围着你坐 你能表演吗？

Some say they obstruct sightlines of old-fashioned landmarks like this one; that they threaten London's cultural identity; that they're just plain ugly.

它们阻碍了看到原来地标的视线；它们威胁到了伦敦的文化辨识度；还有人只是简单地因为它们太丑了。

They chose the Andes because they needed to measure near the equator, to determine if there really was a difference in sphericity there, and because they reasoned that mountains would give them good sightlines.

他们选择了安第斯山脉，因为他们需要测量靠近赤道的地方，以确定那里的圆度是否真有差异，还因为他们认为山区的视野比较开阔。

Most of the sightlines along the mile of Route 5 which I walk are good, but there is one stretch, a short steep hill, where a pedestrian walking north can see very little of what might be coming his way.

我散步经过的五号公路那一段大部分视野良好，只有一小段陡坡除外，行人如果朝北走的话，到那一段就几乎看不到前面的路况。