1. 我正在修。
2. Don't worry, I'm still working on it.
2. 别担心,我正在努力。
3. I'm working on a new design.
3. 我在搞一项新设计。
4. That is what we've been working on.
4. 这是我们一直在努力研制的。
5. I stayed up far into the night working on the documents.
5. 昨晚我研究文件到深夜。
6. I'm going to work on a document.
6. 我要起草一份文件。
7. I'm going to work on a new book in my office.
7. 我要在办公室里写一本新书。
8. I'll work on a report.
8. 我要写一份报告。