Electronic security
[计] 电子保密
🧩 词语组成解析
🗣️ 情景例句
Just because you major in English, don't think that you will have mastered real English.
不要以为你是英语专业的就能精通“真正”的英语。
To break the routine.
调剂一下。
I like writing to my penfriend, but it takes a lot of time.
我喜欢给笔友写信，但那很花时间。