zhè ge / huà tí / bǐ jiào / mǐn gǎn / tā / shuō huà / zǒng shì / diǎn dào jí zhǐ / bù kěn / shēn rù

这个话题比较敏感，他说话总是点到即止，不肯深入。

This topic is quite sensitive; he always touches on it briefly and refuses to go into depth.