Hernial sac

hernial

a. 疝的\\n[医] 疝的

sac [sæk]

n. （动植物组织中的）囊，液囊; abbr. 缩写 = (US) Strategic Air Command 战略空军司令部。;

If you don't know a person's last name, use 'ma'am' or 'sir'.

如果你不知道一人的姓， 你应称呼他为 'ma'am' 或 'sir' 。

No road is long with good company.

途有好伴，不觉路远。

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