| 1 | Learning grammar can shorten the time for learning a foreign language. | |
| 2 | Studies show that regular exercise can shorten sleep time. | |
| 3 | It is necessary to shorten the development time and improve the competitiveness of products and technology. | |
| 4 | To shorten the production cycle, the company decided to increase the number of production lines. | |
| 5 | Working all day without rest may not shorten his road to success. |