太空相关核心词汇 — 英语填空题
题目
按要求填写合适的太空相关单词:句子"Astronauts travel into space by r___ ."中,r开头的词是___;"The Moon goes around the E___ ."中,E开头的词是___;"The Sun is a big and bright s___ ."中,s开头的词是___;"We can see many stars in the sky at n___ ."中,n开头的词是___。