Xiphisternum
n. [解][动]剑胸骨
🗣️ 情景例句
Where does she live?
她住在哪？
The restaurant is upstairs.
那餐厅在楼上。
easily obtainable from the lunar rocks in the form of liquid oxygen.
从月球上的岩石中很容易提炼出液态氧，