* 用英語自身來理解和學習英語是最好的方式，《英讀廊》是《滿庭說英語》中的拓展閱讀系列，這一系列的文章力求幫助大家在英語閱讀能力上有所提升，並樹立英語思維；* 推薦的閱讀的方法是：先原文，適當看解析閱讀，還有疑惑再看雙語對照。* 解析中英語單詞的音標使用Dictcom和IPA雙音標標註，如果需要了解Dictcom音標，請參看我們的《dictionary.com所用的音標體系》一文。* 本篇文章難度係數7.1，由《小仙英語伴讀》人工智慧難度分析系統提供評分。
#英語乾貨鋪#
Why does "Hoo" produce cold air but "Haa" produces hot air?【譯】為什麼「呼」產生冷氣而「哈」產生熱氣？【單詞】Hoo 原型：hoo [hu] int. 呼！(表示激動；高興；輕蔑；贊同等)【單詞】Haa 語氣詞，「哈」
The human body doesn't feel absolute temperature, what you feel is how much heat is entering (hot) or leaving (cold) your body (That's why metals always feel a lot hotter or colder than their surrounding, high heat conductivity).【譯】人體感覺不到絕對溫度，你感覺到的是有多少熱量進入（熱）或離開（冷）你的身體（這就是為什麼金屬總是感覺比它們周圍的東西熱很多或冷冷很多，因為金屬的熱傳導率高）。【單詞】absolute ['ab-suh-loot]['bslut] adj. 絕對的；確實的；完全的【單詞】temperature ['tem-per-uh-cher]['temprt] n. 氣溫；體溫；溫度【單詞】heat [heet][hit] n. 熱度；熱【單詞】entering 原型：enter ['en-ter]['ent] v. 進入【單詞】metals 原型：metal ['met-l]['metl] n. 金屬；合金【單詞】hotter 形容詞比較級，更熱的，原型：hot 【單詞】surrounding 原型：surround [suh-'round][s'rand] vt. 包圍；環繞 n. 環繞物【單詞】conductivity [kon-duhk-'tiv-i-tee][kndk'tvti] n. [物]傳導性；傳導率
So in the case of your breath, the air comes out faster on the "Hoo" sound.【譯】所以在你呼吸的情況下，呼聲中空氣出來的速度更快。【單詞】breath [breth][breθ] n. 呼吸；氣息
A faster flow of air will carry more heat away from your hand via convection.【譯】更快的氣流將通過對流帶走更多的熱量。【單詞】flow [floh][fl] n. 流動；流；流量【單詞】carry ['kar-ee]['kri] v. 攜帶；運送；帶有；承載
【單詞】via ['vahy-uh, 'vee-uh]['va] prep. 經由；通過【單詞】convection [kuhn-'vek-shuhn][kn'vekn] n. (熱的)對流
As someone else pointed out, it is the same reason a fan cools you down even though the air doesn't get any colder.【譯】正如其他人指出的，這是同樣的原因，風扇會讓你覺得涼快，儘管空氣並沒有變得更冷。【詞法】even though是「儘管」的意思，為連詞，引導讓步狀語從句用於引導讓步狀語從句。如：He went out even though it was raining. 儘管在下雨，他還是出去了。【單詞】fan [fan][fn] n. 風扇；扇子；扇形物【單詞】cools 原型：cool [kool][kul] vt. (使)變涼；(使)冷卻；(使)冷靜 vi. 變涼；冷靜下來
The reason the "Hoo" sound produces a faster airflow than the "Haa" sound for the same effort has to do with the opening size in your throat.【譯】「呼」的聲音比「哈」的聲音產生更快氣流的原因與你喉嚨的開口大小有關。【單詞】airflow ['air-floh]['efl] n. 氣流；空氣的氣流【單詞】effort ['ef-ert]['eft] n. 努力；努力的成果【單詞】throat [throht][θrt] n. 嗓子；喉嚨；頸部
If your lungs are pushing the same amount of air in both instances, the air will have to come out faster if the opening is smaller.【譯】如果你的肺在這兩種情況下所排出的空氣量相同，那麼如果開口較小，空氣排出的速度就必須更快。【單詞】lungs 原型：lung [luhng][l] n. 肺；呼吸器官【單詞】pushing 原型：push [poosh][p] v. 推；按；擠；逼迫【單詞】instances 原型：instance ['in-stuhns]['nstns] n. 例子；場合；情況
Think of a garden hose when partially block the opening with your thumb, the water comes out faster!【譯】想想花園裡的水管，當你用拇指部分堵住一部分開口時，水出來的速度會更快！【單詞】hose [hohz][hz] n. 水管；橡皮軟管【單詞】partially ['pahr-shuh-lee]['pɑli] adv. 部分地；不公平地【單詞】block [blok][blk] v. 阻塞【單詞】thumb [thuhm][θm] n. 拇指
When you move your hand up to your mouth, the air hitting it comes directly from your exhale.【譯】當你把手舉到嘴邊時，呼氣時碰到它的是直接來自你的呼出的氣。【單詞】hitting 原型：hit [hit][ht] v. 打（擊）；達到
【單詞】directly [dih-'rekt-lee, dahy-][d'rektli] adv. 直接地；立即；正好地；完全【單詞】exhale [eks-'heyl, ek-'seyl][eks'hel] v. 呼氣；散發
Further away, the air hitting your hand is a mix of your breath and the air between your mouth and hand - which is significantly cooler.【譯】再遠一點，打在你手上的則是你呼出的氣與你嘴和手之間的空氣的混合，這是明顯更涼一些的。【單詞】mix [miks][mks] n. 混合(物)；融合【單詞】significantly [sig-'nif-i-kuhnt][sɡ'nfkntli] adv. 意味深長地；意義深遠地；重要地；較大地【單詞】cooler 原型：cool 形容詞比較級，更涼爽
The further you go the colder the jet will be because the heat from your breathe disperses and dilutes more.【譯】距離越遠，噴氣的溫度就越低，因為你噴出氣體的熱量會擴散和稀釋得更多。【單詞】jet [jet][det] n. 噴射【單詞】breathe [breeth][bri] vi. 呼吸【單詞】disperses [dih-'spurs][d'sps] v. 分散；散開【單詞】dilutes 原型：dilute [dih-'loot, dahy-][da'lut] vt. 稀釋；衝淡
The slower haa flow, on the other hand doesnt mix as harshly with the air (it pushes it away more, mixes with it less).【譯】另一方面，「哈」氣時較慢的氣流與空氣的混合併不那麼劇烈（它將空氣推開得更多，與空氣的混合更少）。【短語】on the other hand 另一方面；例句：On one hand I have to work; on the other hand I have many visitors to see. 一方面我必須工作； 另一方面我有許多來賓要照看。【單詞】slower 原型：slow 形容詞比較級 更慢的，更慢地【單詞】harshly [hahrsh][hɑli] adv. 粗糙地；粗暴地；刺耳地
This mode of flow preserves its temperature for longer than the hoo.【譯】這種流動方式保持溫度的時間比「呼」氣要長。【單詞】mode [mohd][md] n. 方式；模式；樣式；風格【單詞】preserves 原型：preserve [pri-'zurv][pr'zv] v. 保護；保存；保持
Both this and the convection effect factor into the final "temperature" you're sensing.【譯】它與熱對流效應兩個因素都會最終影響你對「溫度」的感覺。【單詞】factor ['fak-ter]['fkt] n. 因素；因數；因子