Oster
[人名] 奥斯特; [地名] [俄罗斯] 奥斯捷尔; [地名] [俄罗斯·白俄罗斯] 奥斯捷尔河; [地名] [乌克兰] 奥斯泰尔
🗣️ 情景例句
so I can study it.
以便我好好研究。
Who is speaking?
请问是谁打来的？
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-