mù shī / zài / chá jīng bān / shàng / xiáng xì / jiǎng jiě / le / jiā lā tài shū / de / bèi jǐng

牧师在查经班上详细讲解了加拉太书的背景。

The pastor explained in detail the background of the Epistle to the Galatians during the Bible study class.