| 1. | Movies can be a worthwhile diversion . 电影可以成为一种有益的娱乐。 |
| 2. | This adventure was a useful lesson . 这番周折给我上了有益的一课。 |
| 3. | It is one of the most useful lessons of life . 这是人生最有益的鉴戒之一。 |
| 4. | Computer methods may then be used to advantage . 采用计算机方法是有益的。 |
| 5. | You might find a great many helpful suggestions . 你会得到许多有益的启迪。 |
| 6. | This accident affords us a useful lesson . 这个事故为我们提供了有益的教训。 |
| 7. | It is worth while to see the museum . 参观博物馆是有益的。 |
| 8. | Cell and tissue cultures are already proving beneficial . 细胞和组织培养已证明是有益的。 |
| 9. | It is useful to partition a graph into its components . 把一个图分解成它的分支,是很有益的。 |
| 10. | They are raising a fund in support of this good cause . 他们正在为赞助这一有益的事业而集资。 |