Xenobiology
n. 外(層)空(間)生物學,宇宙生物學
??? 情景例句
Financial security, that's what it's all about.
家庭財政狀況無憂，這就夠了。
Excuse me? I didn't hear what you said.
對不起，我沒有聽清你說的話。
During that time she covered a distance of eight miles.
在那段時間里，她游了8英里。