你需要一口带有蒸笼的锅，如果没有就临时凑合一下。
You need a wok with a steaming rack for this; if you don't have one, improvise.
专家们一致认为在未来几十年内将出现一个难题：如何在不破坏地球的情况下养活90亿人口。
Experts agree that the next few decades will present a puzzle: how to feed nine billion people without wrecking the planet in the process.
他可以行走两天不吃一口饭，或者一坐下就一下吃进三顿的饭接着又走。
He could walk for two days without eating, or eat three meals in one sitting and then be off.
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