Metepisternum
[醫]后胸前側片
??? 情景例句
I can organize my time efficiently.
我可以有效地安排時間。
John is not forty-five yet,is he?
約翰不夠45歲,是嗎？
Similarly, our own present primitive chemical rockets, though good enough to orbit men,
同樣，我們目前使用的原始化學火箭，雖然可以把人送入軌道，