2. Today there are more airplanes than ever before in the skies. 现在天空中的飞机比以往任何时候都多。
3. All those electrical gauges pollute the skies, just in a differen way. 所有这些电子仪表都以不同的方式污染了天空。
4. The columns crawl through a maze of giant corridors down which fierce snow-fed torrents foam under skies of brass. 纵队在迷宫般的巨大走廊中爬行,下方是在黄铜色天空下翻腾着的积雪化成的汹涌激流。
5. Phil Plait is the author of "Death From the Skies!", as well as the host of the Discovery Channel show "Phil Plait's Bad Universe". 菲尔·普莱特是《来自天空的死亡! 》的作者,也是探索频道节目《菲尔·普赖特的不良宇宙》的主持人。