not to mention
​used to introduce extra information and emphasize what you are saying
He has two big houses in this country, not to mention his villa in France.
I admired her confidence, not to mention the fact that she was intelligent and well spoken.
e.g.
/fe3hdialogue/夜明けの異変 A Skirmish at Dawn#6121d071bdb0e500000c8efc
/fe3hdialogue/ソティス外伝 赤き谷の冒険譚 Tales of the Red Canyon#620dc3eabdb0e500007734ca
/fe3hdialogue/一部12月散策・星辰の節 Exploring Ethereal Moon#6412b459bdb0e500007c4812
/fe3hdialogue/散策・復讐の野 Field of Revenge#6296b05cbdb0e50000e28778
/fe3hdialogue/クロード外伝 砂に眠る神話 The Sleeping Sand Legend#6443ddb2bdb0e50000f53f01
/fe3hdialogue/枢機卿 The Cardinal#62d55ed6bdb0e50000e7f968
/fe3hdialogue/迫り来る守護者 Guardians at the Gates#5e6234b3bdb0e50000d92533
/fe3hdialogue/散策・戦乱の幕開け#62e081d3bdb0e500001136ae
/fe3hdialogue/Byleth×Annette#61f1d496bdb0e5000097069a
/fe3hdialogue/Ashe×Petra#62eb56d9bdb0e50000b56ef5
/fe3hdialogue/Leonie×Lysithea Support Conversations#63965ed7bdb0e50000487639
/fe3hdialogue/Raphael×Hilda Support Conversations#617854b4bdb0e500004dbc51