这个错觉是在1870年首次发现的，其特点是：“诡异的”浅灰色圆点间歇性的出现，似乎连接着白色的表面和黑色的背景。
This illusion first discovered in 1870 is characterized by the "ghostlike" intermittent appearance of lightly colored gray dots that seem to connect the white surfaces and the black background.
结果发现，几乎所有的有毒植物都存在彩色昆虫，但只有一半的无毒植物有彩色昆虫；而黑色、褐色和灰色的昆虫则没有这种偏好性，在采食时没有选择。
Turns out, they found colorful bugs on almost all the toxic plants but less than half of the harmless plants. And black, brown and gray bugs didn't have a preference-they ate indiscriminately.
我几年和他的另外一次会面在西口的郊外，他当时穿着一个开领的黑色T恤，灰色的灯芯绒裤子和黑色的靴子。
When I met him earlier this year at his office, on the outskirts of Westport, Connecticut, he was wearing an open-necked blue shirt, gray corduroy pants, and black leather boots.
应用推荐