AD

例句：

1. 1.广告
   Advertising
2. 2. 行政助理
   Administrative Assistant
3. 3.高级
   Advanced
4. 1. 广告
   Advertising
5. 2.行政助理
   Administrative Assistant
6. 3. 高级
   Advanced
7. 1. She works as an administrative assistant in the company.
   她在公司担任行政助理。
8. 2. The new product is aimed at the advanced market segment.
   新产品针对的是高端市场。
9. 3. He has advanced knowledge in his field, which makes him a valuable asset to the team.
   他在其领域内拥有高级知识，这使得他成为团队中宝贵的资产。