She noticed a marked difference in the children on her second visit.

她第二次来访时注意到孩子们发生了明显的变化。

《牛津词典》

On the second and third day, we visit friends and relatives.

在第二和第三天，我们拜访亲戚朋友。

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We plan to visit the museums on the second day.

第二天的行程是博物馆一日游。

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We plan to visit the museums on the second day.

第二天的行程是博物馆一日游。

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