| 1 | Please do not cross the edge of the platform. | |
| 2 | He is trying to overcome obstacles and achieve his dreams. | |
| 3 | giant hovercraft liners could span the Atlantic; | |
| 4 | The bridge of friendship across nations tightly connects people from two countries. | |
| 5 | We must have the impetus to go forward in order to get over every hurdle. |