yán / jiū / zhè / bù / gǔ / jí / shí / wǒ / men / xū / yào / zǐ / xì / tuī / qiāo / qí / zhōng / de / zhāng / jù

研究这部古籍时，我们需要仔细推敲其中的章句。

When studying this ancient book, we need to examine its wording and sentence structure carefully.