1.but, you know, more in the fraternal, sororal.
但你也要知道，比兄弟、妹姐的情谊还要深…
2.Wu Zetian sees the opportunity is mature already, put forward to do obeisance to sororal thing to Xu Hui, xu Hui agreed.
武则天见时机已成熟，便向徐惠提出拜姐妹之事，徐惠答应了。
3.It is a strange mix of protective sororal sympathy and smugness.
这是一种姐妹间的同情与骄矜的奇特混合体。