Our tour group walked across the old stone bridge over the castle moat.

我們的旅行團走過橫跨城堡護城河的古老石橋。

The travel brochure highlights a medieval castle surrounded by a wide, peaceful moat.

這份旅遊手冊重點介紹一座被寬闊寧靜的護城河環繞的中世紀城堡。

At the meeting, the CEO said strong customer loyalty acts like a moat against competitors.

會議上，執行長表示，強大的顧客忠誠度就像一道抵擋競爭對手的護城河。