lǎo / shī / ràng / wǒ / men / gēn / jù / shàng / xià / wén / pàn / duàn / zhè / ge / chéng / yǔ / de / bǐ / yù / yì老师让我们根据上下文判断这个成语的比喻义。The teacher asked us to determine the idiom's figurative meaning from the context.