I am a Senior Principal Researcher at Microsoft Researchwith research interests in security, privacy, cryptography, and distributed systems. My recent and ongoing work is focused on securing data and ...

In the UK, it’s practical to take an umbrella with you, because it could rain at any time. ”，这个例句中的 practical 的意思是“实用的”，这是我们最常使用到的一个意思。 接下来的几个例句虽各有细微区别，但大都基于这个含义。 Examples ...