他经过了一个曾经是烟囱的石冢，以及一口盖着生锈的锡板的枯井，井盖已经绣得与其说是一种防护，不如说是一种警告。
He passed a cairn of stones that once had been a chimney, and a dry well covered with a slab of the tin so rusty it served as more warning than a safeguard.
经过四天的旅行，他把水给了老人，老人深深地喝了一口，露出了温暖的笑容，感谢他的学生提供的甜水。
After a four-day trip, he gave the water to the old man and he took a deep drink, smiled warmly and thanked his student for the sweet water.
当你饮食的时候，食物从口经过食管到达胃里。
When you eat, food travels from your mouth to your stomach through a tube called the esophagus.
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