jiǎng jiě / tiě fàn wǎn / shí / lǎo shī / xiān / shuō míng / běn yì / zài / fēn xī / tā / zài / xiàn dài / yǔ jìng / zhōng / de / bǐ yù yì

讲解“铁饭碗”时，老师先说明本义，再分析它在现代语境中的比喻义。

When explaining “iron rice bowl,” the teacher first clarified its literal meaning and then analyzed its figurative meaning in modern usage.