He learned this lesson the hard way – from his own personal experience.
他惨痛地得到了这一教训–从他自己的亲身经历中得来的。
Have you prepared this lesson?
你们预习这一课了吗?。
We must keep this lesson in mind.
我们要记住这个教训。
永远不要忘记这个教训。
This lesson is a continuation of our last lesson.
这课是上一课的延续部分。
In this lesson, students learn how to surf the internet safely and effectively.
在这节课中，学生们学习如何安全有效地上网。
During this lesson, students will have the chance to act out roles with other students.
在这节课上，学生将有机会与其他学生一起表演角色。
I learned this lesson from an experience many years ago.
从多年前的一次经历中，我学到了这个教训。
"May you never forget this lesson, my son!" said Mr. Prentice, "You now get the secret of success. It lies in never stopping to think about a task being difficult or tiresome, but in going steadily on, with a fixed determination to succeed."
“愿你永远不会忘记这一课，我的儿子！”普伦蒂斯先生说，“你现在得到了成功的秘诀。它在于永远不要停下来去想一项任务多困难或令人厌倦，而是要稳步前进，以坚定的决心取得成功。”
This lesson was no more reasonable than that of avoiding sheepherding or mountain climbing.
这课比避免牧羊或爬山课程更合理。
You should heed this lesson well.
您应该很好地注意这一教训。
This lesson was longer than usual.
这堂课比往常的时间要长。
Again, this lesson was hard to hear.
这是个难得的教训。
Have you prepared for this lesson?
你预习课文了吗？
This lesson is easier than the last one.
这课比上一课容易。
Unfortunately, Bush has not learned this lesson.
可惜布什没有学好这一课。
This lesson goes through to the Hume on free will.
今天的课还将讨论休谟关于自由意志的观点。
This lesson has received insufficient emphasis globally.
但这个经验没有得到全球的足够重视。
I learned this lesson especially hard with my first dog Pepper.
我则是在我的第一只宠物狗——裴波——身上习得这特别艰难的一课。
So take this lesson in simplicity from the Olympics to heart.
所以把简单的奥林匹克学习的经验记于心中。
This lesson of the past also relates to the challenges ahead.
过去的经验与未来的挑战息息相关。
This lesson is applicable to the world of software development.
这个训练也适用于软件开发领域。
So in this lesson, we’ll look at what happens when a crisis breaks, or begins.
在这节课中，我们看下危机发生时会发生什么。
One might suggest that modern day economists would do well to learn this lesson.
有人可能会建议当代的经济学家来学习这个课程。
But bad things will start to happen if I don't mind this lesson of indexing.
但是坏事情将发生，如果我不注意索引的教训。
In this lesson, we'll focus on ways to highlight that experience and relate it to the job.
在这节课中，我们会学到强调经验并将之和工作联系起来的方法。
This lesson touches on maths, optics-and, the organisers hope, creative thinking and teamwork.
这个课程涉及数学、光学——还有设计人员所希望的，创造性思维和团队合作能力。
This lesson touches on maths, optics-and, the organisers hope, creative thinking and teamwork.
这个课程涉及数学、光学——还有设计人员所希望的，创造性思维和团队合作能力。
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