Hey there, Head Squeezers! I hope you're well. So, it's time for me to answer another one of your questions, and the lucky person today is Sam Lane on YouTube, who asks, "Why do we have eyebrows?"
嘿， Head Squeeze 粉絲們!我希望你們過得很好。那麼，是時候讓我來回答另一個你們眾多的疑問之一，而今天的幸運兒是在 YouTube 上的 Sam Lane，他問道：「為什麼我們有眉毛？」
Well, Sam, of course our eyebrows are one of the most expressive nonverbal forms of communication we have—from eyebrows down, because we're feeling angry, to one up, because you're quizzical and wondering about something. Now in a bid to be pretty, people pluck their eyebrows, they trim them, they preen them, and that is just the guys.
嗯，Sam，我們的眉毛當然是我們所擁有最具表現能力的非言語溝通形式之一－－從眉毛往下，因為我們正覺得生氣，到一邊抬起來，因為你有疑問且正想知道某事。如今為了要美觀，人們拔他們的眉毛、他們修剪它們、他們精心整理它們，而那還只是男人們喔。
But the question is, why do we actually have them in the first place? Great video from James on this one actually, which we'll put up at the end of this one, all about looking at whether human evolution is complete or not. So it's down to evolution over the millennia; we've lost lots of our body hair. And due to natural selection, our eyebrows remain, and the main reason is for protection.
但問題是，起初我們為什麼要真的有眉毛呢？James 討論這問題的優秀影片(我們會在這部結束時將它貼上來)其實全是關於探討人類演化是否完全結束。這起因於幾千年來的演化；我們已經失去了我們許多體毛。然而因為自然淘汰，我們的眉毛保留了下來，主要原因是作為保護。
Now if you think about it, if you're out on a run and you're sweating profusely, or if it's absolutely chucking it down, then that nice arch shape of your eyebrow deflects the rain or the sweat along down your temples and keeps it out of your eyes. Perfect. Not too useful if you're caught in sideways rain, which we do tend to get hit in the UK a lot.
現在如果你思考一下這，假如你在外跑步，且你正大量地流汗，或假如絕對在下著傾盆大雨，那麼你的眉毛那美好的拱形使雨水或汗珠沿著你的太陽穴一起轉向，並讓它避開你的眼睛。完美極了。但如果你被斜向雨困住就不大管用了，在英國我們確實很容易被那種雨襲擊。
Give us a thumbs-up if you've been caught in rain and your eyebrows have done absolutely nothing to save your eyes.
如果你也曾困在雨中，且你的眉毛完全沒發揮任何作用來拯救你的眼睛的話，給我們個讚。
Interestingly, some researchers think that if we didn't evolve to keep hair there as eyebrows, we would have another form of protection for our eyes. Maybe extra long eyelashes would have worked, or maybe a huge forehead, kind of like a shelf to protect our eyes, just like our Neanderthal ancestors.
有趣地是，一些研究者認為，如果我們沒演化成保留那裡的毛髮當作眉毛的話，我們會有另一種對我們眼睛的保護形式。也許超長睫毛會長出來，或也許是一個巨大的額頭，有點像是一個用來保護我們眼睛的棚，就像我們的尼安德塔人祖先一樣。
Anyway, that's all the time I've got for right now. Please do keep sending in your questions—Twitter, Facebook, or below. Until next time, stay quizzical. Need to work on that. Happy Head Squeezing!
總之，那就是我目前有的所有時間了。請務必繼續送來你們的問題－－Twitter、 Facebook，或下方。直到下次前，繼續保持疑惑喔。得努力練習下那。擠腦袋快樂!
- 「試圖」- In A Bid To
Now in a bid to be pretty, people pluck their eyebrows, they trim them, they preen them, and that is just the guys.
如今為了要美觀，人們拔他們的眉毛、他們修剪它們、他們精心整理它們，而那還只是男人們喔。 - 「起初」- In The First Place
But the question is, why do we actually have them in the first place?
但問題是，起初我們為什麼要真的有眉毛呢？ - 「取決於」- Be Down To
So it's down to evolution over the millennia; we've lost lots of our body hair.
這起因於幾千年來的演化；我們已經失去了我們許多體毛。 - 「因為、由於」- Due To
And due to natural selection, our eyebrows remain, and the main reason is for protection.
然而因為自然淘汰，我們的眉毛保留了下來，主要原因是作為保護。 - 「下傾盆大雨」- Chuck It Down
...or if it's absolutely chucking it down, then that nice arch shape of your eyebrow deflects the rain or the sweat along down your temples and keeps it out of your eyes.
...或假如絕對在下著傾盆大雨，那麼你的眉毛那美好的拱形使雨水或汗珠沿著你的太陽穴一起轉向，並讓它避開你的眼睛。
