蓝黄色盲
黄色盲
Blue and yellow tones work effectively but not red or green because of canine colour-blindness.
BBC: New TV channel for dogs sets tails wagging in Israel
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。