GbEng
我不是说她真在外层空间--这只是打个比方. I didn't really mean she was in outer space it's just a figure of speech.
天文学外层空间事物的科学研究,尤指天体及天文现象的位置、大小、分布、运动、构成、能量及演化的科学 The scientific study of matter in outer space, especially the positions, dimensions, distribution, motion, composition, energy, and evolution of celestial bodies and phenomena.