The pond's surface became rippled as the breeze passed by.

rippled 是动词 ripple 的过去分词形式。ripple 的意思是"起涟漪、使泛起波纹"，指水面被风吹动时形成的小波浪。rippled 在这里描述水面被风吹过后呈现波纹状的状态。