The first part is a general introduction aiming to clarify the purpose and significance of the research, to let know the rough idea and motive of this writing.
第一部分是论文的概括性介绍，旨在陈述研究的目的和意义，并简要呈现论文的整体结构和研究动机。
It's a bit inconsiderate of her not to let you know when she expects to arrive.
她不让你知道她什么时候会到，这样做有些不体谅人。
We should let the staff know the channels of communication, you know, who they can contact or direct questions to about these changes.
我们应该让员工知道沟通的渠道，例如他们可以联系谁，或者直接向谁提出关于这些变化的问题。
"I know how to play chess, let me go and show these kids how to do it," he said.
他说：“我知道如何下棋，让我去向这些孩子们展示怎么下。”
"I know how to play chess, let me go and show these kids how to do it," he said.
他说：“我知道如何下棋，让我去向这些孩子们展示怎么下。”
Listen, if you talk to Elizabeth or anything make sure you let everyone know, will you.
听着，如果你和伊丽莎白讲话或什么的，一定要让每个人都知道，你能做到吧。
"Let me explain, sir."—"Don't tell me about it. I don't want to know."
“让我来解释，先生。”—“别跟我说那事。我不想知道。”
Even if he bores you stiff, it is good manners not to let him know it.
即使他把你烦透了，出于礼貌你也不能让他看出来。
If Andrew brushes someone else's teeth beside his own, then it would be very important to let your listeners know that by stressing whose teeth he brushes.
如果除了他自己的牙，安德鲁刷的是其他人的牙，那么通过重读来让你的读者知道他刷谁的牙就很重要了。
It's very kind of you to write to me and let me know about the beautiful city of Hangzhou.
你真是太好了，还写信给我让我了解杭州这座美丽的城市。
Most of my questions to him were greeted with a friendly laugh, but I managed to let him know where my arm hurt.
我向他提出的大部分问题都得到了友好的一笑作为回应，但我还是设法让他知道了我的手臂哪里疼。
We need to let men know about alternatives to the style of football or rugby they played when they were 20.
我们需要让男人们知道，如何改变他们在20岁时踢足球或橄榄球的方式。
We mean to let everyone know about the charity concert, but we don't have enough money for advertising.
我们意在让每个人都知道慈善音乐会，但我们没有足够的钱来做广告。
Don't push for an interview on the spot, but rather explain that you want to let them know of your interest.
这个时候不要急着想去面试，要解释你想让他们知道你的兴趣所在。
Have trust and let your teen know that you trust him. But if he lives up to your trust, his freedom will diminish until you can trust him again.
要有信任，让你十几岁的孩子知道你信任他。但是如果他辜负了你的信任，他的自由就要减少，直到你可以重新信任他。
In the past, we also issue letters before students' final year began to let them know what they needed to take in the final year to be OK, but we don't do that anymore.
在过去，我们也会在学生的最后一年开始前给他们发信息，告知他们在这一年要上什么课程才能顺利毕业，但我们现在不再这样做了。
The headteacher, Maureen Cobbett, sent a letter to parents which said, "I'm writing to let you know that there has been an incident involving a pupil."
校长莫林·科贝特给家长们写了一封信，信中写道：“我写信是想告诉你们，这里发生了一起涉及一名学生的事件。”
If you want me to watch the kids for a couple of hours while you go out, just let me know.
如果你想在出门时让我帮忙照看孩子们几个小时，跟我说一声就行了。
People whisper as they bargain so as not to let other customers know the price they are getting.
人们在砍价时小声说话，以免让其他顾客知道他们的价格。
Anyway, I hope you're OK. Write and let me know what you've been up to! Bye for now!
无论如何，我希望你能没事。写信告诉我你都在忙些什么！再见！
As far as I'm concerned, outlook really matters because if a person looks untidy, no one would like to make friends with him, let alone to know about him.
在我看来，外表很重要，因为如果一个人看上去很邋遢，没有人会愿意和他交朋友，更别说了解他了。
Let students know how to use the new phrase "be allowed to" and "be not allowed to".
让学生知道如何使用新短语 “beallowedto”和 “benot allowed to”。
As you only have a short stay in Shanghai, you probably will not be able to do much more sightseeing. But if I can help in any other way, please let me know.
由于您在上海只能做短暂停留，您可能无法做太多的观光。但如果我能在任何其它方面帮上您的忙，敬请告知我。
When I lecture on crying, I ask my audience to let me know, by a show of hands, which art forms most move them to tears.
当我做关于哭泣的演讲时，我请观众举手告诉我，哪些艺术形式最能使他们感动流泪。
That's right! The coins were easy to distribute and they allowed people to see the emperor or at least his likes and served as an additional reminder to let them know who was in charge.
正确！硬币很容易分发，使人们看到皇帝或至少是地位类似的人，再次提醒他们领导人是谁。
But it's likely that we will need all of you to work this weekend so if any of you can't, please let me know as soon as possible.
但是很可能这个周末我们需要你们所有人都去工作，所以如果你们中有谁不能去，请尽快通知我。
I'm going to call Mum to let her know we'll be late.
我给妈妈打个电话告诉她我们要迟到了。
Be sure to let Tom know the news as soon as he arrives.
要确保汤姆一到就让他知道这个消息。
I got closer and smiled to let her know that I was there to talk, to help.
我走近她，朝她微笑着，让她知道需要聊天和帮忙的时候我都在。
The purpose of this game is to let students know the importance of pulling together.
该游戏旨在让学生认识到齐心协力的重要性。
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