假如你叫Lucy，请给你在美国的笔友Sam写一封信，介绍你所在的班级的任课老师和同学的情况。60词左右急急啊

Dear Sam,
Thanks for your last letterI am very happy to tell you about my class and my studies
Sam, for now i learn everyday, all enjoyed it i have a very responsible, a loving, a good teacher, in the classroom, we all like the teacher, i have a good student, learning whenever i have not understand, they will always help me, i had a full, sam wish you a day may come, china, i'll introduce you to them i wish you happy

有如下几种：
Subscriber Artificial Module（用于iPhone的一些破解问题上的某工具）；
Spectral Angle Mapping（光谱角制图）
surface-to-air missile （地对空导d）
Security Account Manager（Win2000中对用户账户的安全管理使用的安全账号管理器）
Small Array Microphone（小型阵列麦克风）
其他不常见的就不列出了，如仍有需要可以自行搜索。

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