Question

therein adv.在其中；在那里；在那一点上 (1) 他不是个势利小人，而他失败的原因正在于此。(2) 因此我在当中写了一个简短的回覆。(3) 问题的关键就在那里。(4) 我在那里庆祝过了，而且还将要再庆祝。

Accepted Answer

英 [ˌðeər'ɪn] 美 [ˌðer'ɪn] (1) He is not a snob and therein lay his downfall.(2) So I wrote a short reply therein.(3) Therein lies the crux of the matter.(4) I therein do rejoice, and will rejoice. 1[ADV 副词]在那里；在其中 Therein means contained in the place that has been mentioned.   [n ADV]  [FORMAL 正式]By burning tree branches, pine needles, and pine cones, many not only warm their houses but improve the smell therein.许多人在家里烧树枝、松针和松果，不但给房子取暖，还改善了屋里的气味。2[ADV 副词]其中(指和刚提及的事情有关) Therein means relating to something that has just been mentioned.   [n ADV]  [FORMAL 正式]Afternoon groups relate to the specific addictions and problems therein.下午的小组谈到具体的上瘾病例以及其中的问题。3[PHRASE 短语]此即，缘此(用以说明某事是由某种情况导致) When you say therein lies a situation or problem, you mean that an existing situation has caused that situation or problem.   [V inflects]  [FORMAL or OLD-FASHIONED 正式或过时]Santa Maria di Castellabate is barely mentioned in guidebooks； therein lies its charm.卡斯特拉巴泰的圣玛丽亚在旅行指南里鲜有被提及，而它的魅力正在于此。

英语单词	therein
英美音标	英 [ˌðeər'ɪn] 美 [ˌðer'ɪn]
中文释义	adv.在其中；在那里；在那一点上
英语例句	(1) He is not a snob and therein lay his downfall. (2) So I wrote a short reply therein. (3) Therein lies the crux of the matter. (4) I therein do rejoice, and will rejoice.
中文例句	(1) 他不是个势利小人，而他失败的原因正在于此。 (2) 因此我在当中写了一个简短的回覆。 (3) 问题的关键就在那里。 (4) 我在那里庆祝过了，而且还将要再庆祝。
柯林斯解释	1 [ADV 副词]在那里；在其中 Therein means contained in the place that has been mentioned. [n ADV] [FORMAL 正式] By burning tree branches, pine needles, and pine cones, many not only warm their houses but improve the smell therein. 许多人在家里烧树枝、松针和松果，不但给房子取暖，还改善了屋里的气味。 2 [ADV 副词]其中(指和刚提及的事情有关) Therein means relating to something that has just been mentioned. [n ADV] [FORMAL 正式] Afternoon groups relate to the specific addictions and problems therein. 下午的小组谈到具体的上瘾病例以及其中的问题。 3 [PHRASE 短语]此即，缘此(用以说明某事是由某种情况导致) When you say therein lies a situation or problem, you mean that an existing situation has caused that situation or problem. [V inflects] [FORMAL or OLD-FASHIONED 正式或过时] Santa Maria di Castellabate is barely mentioned in guidebooks； therein lies its charm. 卡斯特拉巴泰的圣玛丽亚在旅行指南里鲜有被提及，而它的魅力正在于此。

Lies [Formal Situation I Adv 副词 Means Mentioned