| 1 | This structured knowledge is built by years of effortful study | |
| 2 | The student must make a real effort to improve his speed, and if necessary his comprehension, with each exercise. | |
| 3 | The mastery of language is not easy and requires painstaking effort. | |
| 4 | He studied hard for his first test, and he wanted to do his best. | |
| 5 | We hold it that Yuanhua shall exert itself in exhibition management, atmosphere cultivation and uniqueness pursuit. |