The aquarium tour guide pointed out a shoal of silver fish circling the main tank.

水族館導覽員指著一群在主水槽中繞游的銀色魚群。

Our travel brochure promises snorkelers a close view of colorful shoals near the island.

我們的旅遊手冊保證浮潛客能近距離觀賞島嶼附近的繽紛魚群。

The fishing company reported that sonar detected several large shoals off the eastern coast.

該漁業公司報告指出，聲納在東部海岸外偵測到數個大型魚群。