We must work hard to acquire a good knowledge of English.

我们必须用学习才能精通英语。

The school boy took it ill that the teacher reproved him for idleness.

这个小学生心里不痛快,因为老师责备他不用。

His graduation will never take place if he doesn’t get to work.

他要是不用就永远毕不了业。

He is the more diligent of the two boys.

他是这两个男孩中较用的一个。

I encouraged her to work hard and to try for the examination.

我鼓励她用并为这次考试做努力。

The imminence of their exams made the students work even harder.

"考试将来临,迫使学生们更加用了。"

The imminence of their exams made them work harder.

考试将来临，迫使他们更用了。

You'll have to work harder to catch up with the top students in your class.

要赶上班上最优秀的同学你得更加用才行。

Cut out the shenanigans and start studying!

不要胡说了, 用吧!

Diligent students occasionally fail this subject.

用的学生在这门课上偶尔也不及格。

I hadn't studied hard at college and so I had a rude awakening after I began to work.

我在大学时念书不用, 参加工作后才后悔莫及。

Don't overstudy yourself.

(学习)不要用过度。

As the “bueaty stone” screened among all kinds of candidates, jade was known for its mellowy, translucent and flinty texture as well as practicality.

玉是从各种石头中筛选出来的“石之美者”，具有温润莹泽、缜密坚韧的美感和实用能。