The time for our study and work is usually limited. 我们用于学习和工作时间通常都是有限的。

study

Besides, scientists are making a thorough study of genes and they will manage to cure cancer by adjusting the arrangement of genes.
此外，科学家正进行深入研究的基因，他们将设法通过调整治疗基因安排癌症
来自：人类生存的一篇作文（英语四级作文）Man Is to Survive

We can study on the Internet.
我们可以在网上学习。
来自：我喜欢的教室在未来

People learn much from TV, students can study by watching some educational programmes.
人们可以从电视上学到许多知识，学生可以通过观看一些教育方面的节目来获取知识。
来自：看电视是件好事吗

They encourage me to study well.
他们鼓励我要好好学习。
来自：关于你自己

Therefore, I must study conscientiously from now on so that I can get the chance to study as a postgraduate in an agricultural university.
因此，从现在开始我必须认认真真地学习，这样我才有可能有机会成为一名农业大学的研究生。
来自：我的理想工作My Ideal Job

He will make even greater efforts in his study later on.
今后他会更加努力地学习。
来自：Should Students Do Some HousewoPk?-学生是否应该做家务

I am willing to study hard and become a teacher in the future.
我愿意努力学习，将来成为一名教师。
来自：我的野心my ambition

I feel happy and lucky to know you guys and study together.
我能够认识你们并一起学习，我感到高兴又幸运。
来自：自我介绍

The time for our study and work is usually limited.
我们用于学习和工作时间通常都是有限的。
来自：About friends and value of time关于朋友和时间价值