Osts
(ost 的复数) abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
I am, too.
我也一样。
This is Tom. He's my classmate.
这是汤姆。我的同学。
There is no social problem it is more incumbent upon us to understand than this of the role of custom.
而没有任何一个社会问题比得上风俗的作用问题更要求我们对它理解。