Students here study a broad range of subjects, so sometimes they feel really tired.

这里的学生所学的科目范围很广，所以有时候他们觉得很累。

youdao

It is also a commendably broad study-covering a diversity of species from parrots to primates.

这也是一项涉及范围广泛、值得赞扬的研究——涵盖了从鹦鹉到灵长类不同物种。

youdao

Another limitation is that brands for this study were not selected strictly on the basis of market share or to represent a broad range of tar yields, but rather were a convenience sample.

研究的另一个缺陷在于，研究所针对的烟草品牌并没有严格按照市场份额来挑选，或者说这些挑选的烟草品牌不足以代表不同的焦油含量。相反，这些烟草品牌全是简易样本。

youdao

Gordon is a 72 year-old economist who dedicated his career to the study of broad macroeconomic trends and Brynjolfsson is a 51 year-old economist who works alongside the technological wizards at MIT.

FORBES: Why 140 Characters Are Better Than A Flying Car

As part of the compromise, ICANN also agreed to conduct a broad study of the initial election and the implications for selecting future at-large candidates.

CNN: Group overseeing Internet changes sets its election rules