他毕业于SSE，现在在那里任教。

He graduated from the ___SSE and now teaches there.

我们采用服务器端加密技术来保护用户文件。

We use ___SSE to secure user files.

她最近加入了SSE，以便与其他经济学家建立联系。

She recently joined the ___SSE to connect with fellow economists.