本期内容：
China launched two astronauts on a 33-day spacemission, the country’s longest-yet. They will dockwith an experimental space laboratory, launchedlast month, that is a testbed for a station that will gointo full-time service in 2022. China has spent billionsin recent years to match the spacefaring ambitions ofAmerica and Russia, and to compete with India andJapan.
Astronaut：宇航员
Dock：对接
Testbed：实验平台
Spacefaring：太空航程 |