PHRASE
此即,緣此(用以說明某事是由某種情況導(dǎo)致)
When you say therein lies a situation or problem, you mean that an existing situation has caused that situation or problem.
例句
Santa Maria di Castellabate is barely mentioned in guidebooks; therein lies its charm.
卡斯特拉巴泰的圣瑪麗亞在旅行指南里鮮有被提及,而它的魅力正在于此。