Obdurability
n. 坚固
🗣️ 情景例句
And I wonder if there are some balcony seats still available.
不知道还有没有包厢的位子？
Knowledge is a treasure, but practice is the key to it.
知识是一座宝库，实践是打开宝库的钥匙。
Just as that moment the train came into the station.
正在这时，火车进站了。