xué / xí / yīng / yǔ / yǔ / fǎ / shí / wǒ / men / xū / yào / liǎo / jiě / guān / xíng / cí / de / yòng / fǎ学习英语语法时,我们需要了解冠形词的用法。When studying English grammar, we need to understand how articles are used.