xiě / kǎi shū / shí / yào / shǐ zhōng / bǎo chí / zhōng fēng / yòng bǐ / yě jiù shì / zhèng fēng

写楷书时，要始终保持中锋用笔，也就是正锋。

When writing regular script, you should always maintain center tip technique, that is, the upright brush.