《资治通鉴·唐纪·唐纪六十一》
萧太后有一个同父异母的弟弟在福建，性情懦弱，一直没有向官府申报自己和萧太后的姐弟关系。
太后有异母弟在闽中，孱弱不能自达。
Xiao Empress Dowager had a younger half-brother in Fujian who was timid by nature. He had never reported his relation to the Empress Dowager to the authorities.
<s>[INST] Kindly elucidate the central themes in this passage in English: 太后有异母弟在闽中，孱弱不能自达。 [/INST] Xiao Empress Dowager had a younger half-brother in Fujian who was timid by nature. He had never reported his relation to the Empress Dowager to the authorities.</s>
Kindly elucidate the central themes in this passage in English: 太后有异母弟在闽中，孱弱不能自达。
user
Xiao Empress Dowager had a younger half-brother in Fujian who was timid by nature. He had never reported his relation to the Empress Dowager to the authorities.
assistant