Scientists have limited abilities to create durable modifications of chronobiological demands.
科学家们对生物钟需求的持久修改能力有限。
2
Demands on students have to be tailored to their interests and abilities.
对学生的要求须与他们的兴趣及能力相适应。
3
We are more than equal to the task even although the time factor concerns some of you, but you can rest easy as our technological abilities can deal with the demands upon us.