為什麼火車不會從軌道上滑下來

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為什麼火車不會從軌道上滑下來

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哈囉~小朋友們!我是小艾姊姊!
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哈囉~小朋友們!我是小艾姊姊!今天要解開一個「轟隆轟隆」的小秘密——為什麼火車不會從軌道上滑下來呢?(๑>◡<๑)答案藏在火車的「小腳丫」上唷!仔細看火車輪子,內側是不是有**凸凸的邊邊**?軌道剛好也有**凹凹的小溝溝**~當輪子滾動時,凸邊就會像小牙齒一樣「卡進」軌道的凹溝裡!(*´∀`)~♥而且啊~火車的輪子不是直直一根棒子唷!它們是兩顆一組,中間用「會轉彎的關節」(轉向架)連起來~這樣遇到彎彎的軌道時,輪子就會「咕嚕嚕」自己調整方向,像溜滑梯一樣順暢過彎啦!最後再考考你:下次看到火車輪子,記得找找它的「凸凸小牙齒」在哪裡喲~嗚嗚——出發囉!( •̀ ω •́ )✧小艾姊姊最新發布:

Hi, I’m Eric — a proud dad, passionate foodie, and dedicated independant travel advisor with Expedia Cruises. 🍜✈️ Blogging is where all my interests come together — exploring great food, discovering fun family activities, and inspiring others to travel the world with curiosity and joy.You can often find me tasting my way through local restaurants on 🍜https://604FoodCritics.com🍜 or sharing family-friendly adventures on ✈️https://kidsfun.ca✈️For Mandarin-speaking families, I also host a Spotify show introducing children to fun and educational topics: 🎧https://open.spotify.com/show/65CIWjZWm5Nzk0PZy9iTea🎧If you ever want to talk food, travel, or family adventures, feel free to reach out! ✉️ Email: [email protected] 🌐 Website: https://expediacruises.com/en-US/EricKai