Message authentication

message ['mɛsɪdʒ]

n. 信息;消息;要旨;教训; v. 给…发消息;给…留言;

mess(send)+age→音信；通信；使命；报信

authentication [ɔ:ˌθentɪ'keɪʃn]

n. 证明，鉴定;身份验证;认证;密押;

Yes, caring.

是的 ，关心。

Don't forget to invite him.

不要忘记邀请他。

I want to ask you for your advice. When I leave school, I want to be an engineer. For years I have been interested in engineering. I have made tools at home and have written articles for magazines. My father says that engineering is not a suitable subject

我希望得到您的指点。中学毕业后，我希望成为一名工程师。多年来，我一直对这个方面感兴趣。我在家制作各种用具，给杂志写文章。我的父亲说工程学不适合女孩子学。他要我学习地理。可是我对这门学科一点也不感兴趣。我尝试阅读有关这方面的书籍，然而，我感到索然无味。我该?2283