Leaving the most important tip for being a good guest is to know when to say goodbye.
作为一个好客人，给你最重要的提示是知道什么时候说再见。
We publish guidelines about when to say you're an IBM employee, what kind of material is appropriate and inappropriate to share, etc.
我们制订了一些规定，例如明确了员工在哪些场合下可以表明自己IBM员工的身份；哪些信息是适合分享的、哪些信息则不然等。
"We're able to distinguish when we need to use what type of language," Varnhagen said. "It's all part of learning when to say what — how to use what communication style."
“我们能分辨出我们需要用哪种类型的语言，”Varnhagen说，“这都是学习的一部分，什么时候说什么，如何使用交流方式。”
Know when to say no: If your child is already doing a lot but really wants to take on another activity, discuss what other activity or activities need to be dropped to make room for the new one.
要知道什么时间说“不”：如果你的孩子已经参加了大量的活动，但是仍然想要参加另一个，就要讨论一下还有什么别活动或者需要放弃目前活动以腾出空间来参加新活动。
When the Marionette had no more to say, the Judge put out his hand and rang a bell.
当木偶再没什么可说的时候，法官伸出手来，摇了摇铃。
When the teacher speaking of you, he used to say, "Do not go with that Lamp-Wick!"
老师在谈到你的时候，总是说：“不要和蜡烛芯做朋友！”
The stock market reacts positively when companies tie CEO pay to, say, stock prices, a sign that those practices build up a corporate value not just for the CEO.
比如当公司将总裁的薪酬与股票价格挂钩时，股票市场就会做出积极反应，这表明这些做法所创造的企业价值不仅仅是为了公司总裁。
My mother felt someone climb in bed. She thought it was my father coming to bed, but when she turned over to say goodnight, there was no one there.
我妈妈觉得有人爬上了她的床。她以为是我父亲来睡觉了，但当她转身说晚安时，那里一个人也没有。
Sun clocks worked, of course, only on clear days; water clocks misbehaved when the temperature fell toward freezing, to say nothing of long-run drift as the result of sedimentation and clogging.
当然，太阳时钟只能在晴天工作；当温度下降到接近冰点时，水钟就会失灵，长期漂浮的东西因为下沉或堵塞而无法工作。
I was very surprised when all of my friends crowded into my room to say happy birthday to me.
当我所有的朋友涌入我的房间跟我说生日快乐的时候，我感到很惊喜。
It hurts me to think that my friend didn't say goodbye to me when she left.
一想到我的朋友离开时没有向我道别，我就很伤心。
When they came to decorate the rear bedroom, it was Jemma who had the final say.
他们开始装修后卧室时，说了算的人是杰马。
"That's different from what I used to say when I was a child," said the Gryphon.
“这跟我小时候讲的不一样。”鹰头怪说。
"Cheers", despite its popularity, is considered an informal way to say thank you—and this is a definite clue as to when you can best use it.
尽管“干杯”很受欢迎，但它被认为是一种非正式的表达感谢的方式——这也就明确说明了什么时候使用它是最合适的。
My mom looked at me when it was our turn to say our final goodbye to grandpa.
轮到我们和爷爷最后道别时，妈妈看着我。
"It smells like…," we have to say when describing an odour, struggling to express our olfactory experience.
形容一种气味时，我们不得不说“它闻起来就像…”，从而努力地表达我们的嗅觉体验。
When you have to say something in English, think first and ask yourself" What words and phrases do I know in English that I can use in this situation?"
当你必须用英语说某事时，先问问自己“我知道什么英语单词和短语在这种情况下可以用上？”
They also claim that when teens say they feel closer to their parents, they are less likely to use drugs and alcohol.
他们还声称，当青少年说他们感觉与父母更亲近时，他们就更不太可能使用毒品和酒精。
So, what exactly are you supposed to say when "thank you" is only the 20th most popular way to express gratitude?
那么，当“谢谢”只是表达感激的第20种常用方式时，你到底应该说什么呢？
A few hours later, when she came to say goodbye, the family asked her to settle an argument they've been having over exactly what advice she had given.
几个小时后，当她来告别时，家人要求她解决他们一直在争论的问题，即她到底给了什么建议。
Based on excavations, we can know the layout of the houses and the location of the graves, but we're only guessing when we tried to say why they did it that way.
根据挖掘的情况，我们可以知道房子的布局和坟墓的位置，但是我们试图解释他们这样做的原因时只是瞎猜而已。
When you come to the king, and he asks for the beautiful princess, you must say, "Here she is!"
当你去见国王的时候，如果国王要见那位美丽的公主，你必须说：“她在这儿！”
Silences may be thoughtful, or they may be empty when a person has nothing to say.
沉默可能是深思熟虑的表现，也可能是一个人无话可说时的空洞。
Where am I to get meat to give to all these people when they whine before me and say, "Give us meat to eat" ?
当百姓在我面前哀号说“给我们肉吃”时，我从哪里得到肉给他们吃呢？
Where am I to get meat to give to all these people when they whine before me and say, "Give us meat to eat" ?
当百姓在我面前哀号说“给我们肉吃”时，我从哪里得到肉给他们吃呢？
To remember your ATM PIN (4298, say), imagine yourself on a sailboat when a swan tries to attack you.
为了记住你的银行卡密码（比如4298），想象你坐在帆船上，一只天鹅尝试攻击你。
When asking students to say the color of their pens, they need to lift them up so that you can verify that they are correct.
要求学生说自己笔的颜色时，他们要将笔举起来，这样以便你核实他们说得是否正确。
But when it comes to getting ahead, experts say, the ABCs of business should include a P, for politics, as in office politics.
但专家们表示，要想获得成功，企业的基础知识应该包括P，即“政治”，就像“办公室政治”一样。
It's a shame to say it again, but I did tell a lie when questioned last time in my teacher's office.
再说起这件事真让人羞愧，但是我上次在老师办公室被问到的时候确实撒了谎。
That's to say, when we do something to the land, we should never hurt it.
也就是说，我们利用土地时，不应该破坏土地。
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