🧩 词语组成解析
n. 〔动〕岩鹩
🗣️ 情景例句
No problem. I'm glad to help.
小事情，我很高兴这样做。
He is not fit to command others that cannot command himself.
正人先正己。
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，