tā / duì / zhè / ge / zhuān / yè / wèn / tí / bìng / bù / liǎo / jiě / zuì / hǎo / bú / yào / suí / yì / zhì / huì他对这个专业问题并不了解,最好不要随意置喙。He does not understand this specialized issue, so he had better not comment casually.