好奇为什么 · 4-8 岁

肚子为什么会咕咕叫

肠胃里的忙碌声音

科普启蒙约 5 分钟4-8 岁中英双语

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周末早晨，小树正帮爸爸摆早餐，肚子忽然“咕噜噜”响了一阵。他低头摸摸肚皮：“是谁在里面说话呀？”

On a weekend morning, Xiaoshu was helping Papa set out breakfast when his tummy suddenly gave a long rumble. He looked down and patted it. “Who is talking in there?”

周末早晨，小树正帮爸爸摆早餐，肚子忽然“咕噜噜”响了一阵。他低头摸摸肚皮：“是谁在里面说话呀？”

On a weekend morning, Xiaoshu was helping Papa set out breakfast when his tummy suddenly gave a long rumble. He looked down and patted it. “Who is talking in there?”

小树问：“是不是肚子空了，就在催我吃饭？还是它不舒服了？”爸爸说：“先别担心，我们一起听听它在忙什么。”

“Is my empty tummy telling me to eat?” Xiaoshu asked. “Or is something wrong with it?” Papa said, “No need to worry yet. Let’s find out what it is busy doing.”

爸爸解释：“我们的胃和肠道像一条长长的软管。管壁上的肌肉总会一段收紧、一段放松，像波浪一样把里面的东西往前推，这叫蠕动。”

Papa explained, “Our stomach and intestines are like one long, soft tube. Muscles in their walls tighten and relax in waves to move things forward. This is called peristalsis.”

“肠胃里不只有食物，还有吞进去的空气、消化时产生的一点气体和消化液。蠕动推着气体和液体移动，就会发出咕噜咕噜的声音。”

“There is more than food in the digestive tract. It also holds swallowed air, a little gas made during digestion, and digestive fluids. When the waves move gas and liquid along, they can make gurgling sounds.”

“两顿饭之间，肠胃还会出现一阵阵更有力的‘清扫运动’，把剩下的气体、液体和小碎屑继续往前送。空腹时，这些声音常常更容易听见。”

“Between meals, stronger cleanup waves sometimes pass through the digestive tract, moving leftover gas, liquid, and tiny bits onward. With less food inside, those sounds are often easier to hear.”

爸爸接着说：“所以肚子叫有时会碰上饿的时候，却不等于一定饿了，更不等于一定生病。吃过东西以后，肠胃照样会蠕动，也可能发出声音。”

Papa continued, “So a rumble may happen when you are hungry, but it does not always mean hunger—and it certainly does not automatically mean illness. Your digestive tract still moves after you eat and can make sounds then, too.”

小树喝了几口水，走去拿野餐篮时，肚子又轻轻响了一声，可他一点也不疼。爸爸提醒他：“偶尔这样通常很正常；如果同时一直疼或很不舒服，就要告诉大人。”

Xiaoshu drank some water and walked over to fetch the picnic basket. His tummy softly gurgled again, but nothing hurt. Papa reminded him, “An occasional rumble is usually normal. If it comes with lasting pain or you feel very unwell, tell a grown-up.”

到了海边，小树吃完午餐，肚子安静地忙着消化。海风吹来一滴咸咸的浪花，他又问：“海水为什么是咸的呢？”

At the seaside, Xiaoshu finished lunch while his tummy quietly got on with digestion. A salty drop of sea spray blew onto his lips, and another question popped up: “Why is seawater salty?”

肠胃会用一阵阵蠕动推动里面的气体和液体，所以肚子有时会咕咕叫；空腹时清扫式的运动更容易被听见，但肚子叫不一定就是饿了或生病了。

The digestive tract moves in waves that push gas and liquid along, which can make tummy-rumbling sounds. These cleanup movements are often easier to hear on an empty stomach, but a rumble does not always mean hunger or illness.

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