instance

许多棒球运动员惊人的视力是体育运动中身体优势的一个实例。

The amazing vision of many baseball players is one ___instance of physical superiority in sports.

滴灌是一项使沙漠农业成为可能的创新实例。

Drip irrigation is an ___instance of an innovation that makes farming possible in the desert.

使用手势交流是不用口语进行沟通的一个实例。

Using gestures to communicate is an ___instance of communication without spoken words.