wǎng / yè / wú / fǎ / xiǎn / shì / zhè / ge / hàn / zì / shí / cháng / huì / chū / xiàn / yí / ge / xū / quē / hào

网页无法显示这个汉字时，常会出现一个虚缺号。

When a webpage cannot display a Chinese character, a white square often appears.