| 1 | The road runs along the edge of the cliff. | |
| 2 | The aim of this project is to expand our business scope and extend our market. | |
| 3 | The content of this book is very rich, and it even extends into some topics for discussion. | |
| 4 | In our company, students can constantly extend their knowledge through training courses. | |
| 5 | This project not only needs to extend on the basis of the original, but also needs to pay special attention to risk control. |