"Alien Contact," for example, is an exercise developed for middle-school students who use hand-held devices that can determine their location.
例如，“Alien Contact”是为中学生开发的一种练习，他们可以使用手持设备来确定自己的位置。
Staying calm was an exercise in self-control.
保持镇定是一种自我控制活动。
Learners can feel very discouraged if an exercise is too difficult.
如果练习太难，学习者就可能感到很没信心。
She dismisses the reform process as an exercise in collective navel-gazing.
她对这场改革嗤之以鼻，认为只是场无实际行动的集体空想而已。
In an exercise designed to be as real as possible, they simulated an advance on enemy positions.
在一次设计得尽可能逼真的演习中，他们模拟了一次向敌方阵地的前进。
But Broomfield argues that the long-running case is now an exercise in damage limitation for the Los Angeles police.
但布洛姆菲尔德争辩说，目前这一持续性事件正是对洛杉矶警察在损失控制方面的一次演习。
是的，我想要一本练习册。
I'll teach you an exercise my baseball coach taught me.
我教你一个我的棒球教练曾教给我的练习方法。
Tai chi, part of Chinese culture, is an exercise which helps people improve themselves in health.
太极是中华文化的一部分，是一种帮助人们提高健康水平的运动。
哦，它是一个练习本。
A notebook? No, it's an exercise book.
一个笔记本？不是，它是一个练习本。
I want to get an exercise book on the way home.
我想在回家的路上买个作业本。
When I passed the playground I found an exercise book on the ground.
当我穿过操场时，我在地上发现了一本练习册。
As an exercise, try to explain why before reading the next paragraph.
作为练习，在阅读下一段之前请试着解释一下原因。
In their preliminary design, an astronaut is strapped into the seat of a machine that resembles an exercise bike.
在他们的初步设计中，宇航员被绑在一个类似于健身自行车的机器座位上。
If you love to swim or dance, you may find it easier to stick with an exercise program that is built around these activities.
如果你喜欢游泳或跳舞，你会发现更容易坚持以这些活动为基础的锻炼计划。
开始一项锻炼计划。
How to Design an Exercise program?
如何制订一个锻炼计划？
做一个练习视频。
But what about an exercise routine?
那日常锻炼呢？
A date is an exercise in adjustment.
相亲是一项修正训练。
This is an exercise we leave to the reader.
这将留给读者作为练习。
In addition, she joined an exercise class.
除此之外，她还去参加运动课程。
That's left as an exercise for the reader.
这将作为练习留给读者来完成。
This is left as an exercise to the reader!
这留给读者作为练习！
We'll consider that an exercise for the reader.
我们将把这作为读者的一个练习。
Do this on your own site or as an exercise.
可以在你自己的网站上作为练习。
This is left as an exercise for the reader.
这部分内容留给读者作为练习。
This is left as an exercise for the reader.
这部分内容留给读者作为练习。
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