Estacade
围桩, 防栅
🗣️ 情景例句
What's the nature of the problem?
是什么样的问题？
The secret of wealth lieth in the letters SAVE.
节俭是致富的秘诀。
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，