2018-2019学年英语人教版必修3课件:Unit 4 Section Ⅰ Warming Up Reading — Pre_reading
2024-05-11 12:47来源: 高考学习网本文影响了:908人
If you watch the sky about an hour after the sun goes down, you may see some “moving stars”.But they're not real stars.They are manmade satellites.And the biggest of all is the International Space Station (ISS国际空间站).