学帮网What're those They have 3eyes,red ,yellow and green.Oh,they are __________________
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What're those They have 3eyes,red ,yellow and green.Oh,they are __________________
three－primary colours? 三原色
哦看到了3eyes,那应该是 traffic lights
我是老师,有问题可以交流～
What're those ?They have 3eyes,red ,yellow and green. Oh,they are ___traffic lights________
traffic lights