We're going to take some air on the boardwalk.

我们要去木板路逛逛。

In the evening he grew vigorous again, and took the air on the ramparts, often having his dinner out, and seldom returning till midnight or later.

到了晚上，他又变得精力充沛， 到城墙上呼吸新鲜空气， 经常在外面吃晚饭， 直到午夜或更晚才回来。