notadictionary.com
そういえば以前、自力整体の先生に「入ってね、
→ “Come to think of it, back in the day, a self-healing teacher said 'You should join,'”
そういえば sō¹ ieba = come to think of it (idiom for recalling something)
以前 izen = in the past / before (noun/adverb)
以 i = by means of
前 zen = front / before
自力整体 jiriki seitai = self-healing / manual therapy (noun compound)
自 ji = self
力 riki = power / strength
整 sei = arrange / align
体 tai = body
の no = 's / of (possessive particle)
先生 sensei = teacher / doctor (noun)
に ni = to / by (directional/agent particle)
「 = opening quotation mark (punctuation)
入って itte = enter / get in (v. te-form)
入 nyū¹ = enter
て te = connecting form marker
ね ne = right? / isn't it? (sentence-ending particle)
」 = closing quotation mark (punctuation)
