Required size of study 研究需要的数量
What this study suggests is that the speed of climate shifts and the magnitude of the changes required to adapt could be much greater.
这项研究表明,气候变化的速度和适应气候变化所需的改变幅度可能要大得多。
I know it's the end of high school, but many of classmates are going on to the same university, and we are still required to study hard.
我知道高中已经结束了,但是很多同学将上同一所大学,我们仍然需要努力学习。
The school she chose, however, required all students to study Japanese as part of its academically rigorous curriculum.
然而,她选的新学校要求所有的学生都要把学习日语作为其严谨的教学课程的一部分内容。
One study found that older Americans do not get enough Vitamin C and required minerals.
VOA: special.2009.04.21
Those completing study programs at foreign medical schools may be required to return to their own country for at least two years after their training ends.
VOA: special.2009.06.02
And,all of the students were required to study for four years instead of three.
VOA: special.2010.06.27
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