Today we talk about something common to everyone around the world.
今天，我们谈论的是世界各地人们的共同之处。
Laughing is one of life's most simple pleasures.
笑是生活中最简单的乐趣之一。
It's free. You can do it anywhere.
笑是免费的。随便在哪里都可以笑。
And it makes you feel good!
笑让人心情愉悦。
There is another thing you should know about laughterLaughter is contagious.
关于笑，你还应该知道一件事：笑声是有传染性的。
Like the flu can spread easily among people.
笑声就像流感一样，很容易就在人群中扩散开来。
Often when we hear someone laughing in a crowded room or a packed train,
比如，当我们听到有人在拥挤的房间和火车上笑的时候，
for example, We start laughing too-even if we have no idea why.
往往，我们也会开始笑，尽管我们也不知道为什么会笑出来。
But unlike the flu,
好好洗手，就能预防流感，但与预防流感不同，
even a good hand washing will not 【
protect you against
】 【
breaking into a fit of laughter
】.
a.保护某人（免受）伤害
b.发出一阵笑声
没什么能阻止你突然放声大笑。
Your eyes water, your heart rate goes up, and your face gets that beautiful laughter glow.
你会笑出眼泪，心跳加速，脸因为笑而美丽的发光。
In fact, many doctors say that mental health can affect physical health.
事实上，很多医生说心理健康会影响身体健康。
You might even say "Laughter is the best medicine."
你甚至可以说“笑是最好的良药。”
However, laughter is the best medicine does not mean
然而，“笑是良药”并不意味着。
that you should not take medicine when you are sick.
你生病时不用吃药。
It simply means that having a positive outlook might help ease your troubles.
这仅仅意味着积极地人生观可能有助于减轻你的烦恼。
Making others laugh with you is an act of joy and kindness.
让别人跟你一起大笑是一种快乐、善良的行为。
However, the opposite is true when people laugh at you.
然而，当人们嘲笑你的时候，情况正好相反，
That experience is lonely, and no food at all.
被别人嘲笑是孤独的，更不要提乐趣了。
For example, a teacher 【 falls on hard times 】 and loses his apartment.
（尤指经济上）遭遇困难
例如，一位老师陷入困境，连住的地方也没有了。
So, for a couple of days, he sleeps in his car outside of the school.
所以有几天他只能把车车停在校外，睡在车里，
【
As it happens
】, at night, he sleeps in bright pink
碰巧；正巧
Eg：As it happens，I konw someone who might be able to help.
恰好晚上睡觉时他穿了亮粉色的连身睡衣。
full-body pajamas with a hood and bunny ears.
睡衣帽子上还有对兔耳朵，
And he holds a teddy bear.
他手里还抱着只泰迪熊。
Well, some cruel students record him sleeping in his car and shared the video with their classmates.
接着一些刻薄的学生把这位老师在车里睡觉的样子拍了下来，还和班上同学一起看了视频。
The teacher becomes the laughingstock of the whole school.
于是这位老师成了全校的笑柄。
That was a mean thing to do.
学生这么做很卑鄙。
Well,yes, yes, it was. But our story does not end there.
嗯，是的，确实。这么做很卑鄙。但我们的故事并没有就此结束。
The students post the video online,and it 【
goes viral
】!
迅速走红
还是那些学生，他们把视频上传到网上，然后它就在网上疯传了。
More than 10 million people watch it on YouTube!
超过一千多万元人在YouTube上观看了那段视频!
So, the teacher gets dozens of offers to make commercials for pajamas and teddy bears.
因此，老师收到了许多为睡衣和泰迪熊做广告的提议。
He makes a lot of money.
他赚了很多钱。
So,In the end, you could say the teacher 【
definitely had the last laugh
】.
笑到最后/取得最后胜利
所以,最后,可以说老师肯定笑到了最后。
When you have the last laugh when,you 【 end up winning 】 when at first you were losing
最终/到头来……
Eg:If you don't know what you want，you might end up getting something you don't want.
当你笑到最后，就算一开始输了，只要最后赢了，就是赢了。
It may be difficult, but if you have the choice to laugh or cry, choose laughter.
虽然可能很难，但如果你可以选择欢笑和哭泣，那就选择欢笑。
For one thing, you may inspire others to laugh to.
至少，你可能会让别人也拥有欢笑。
