言いい替かえるなら

expression

in other words; to put it another way; if we rephrase it

Used to introduce a restatement or clarification of what was just said. Functions as a conjunction-like phrase.

• 言いい替かえるなら、それは不ふ可か能のうだということです。

  In other words, it means that it's impossible.

• 彼かれの説せつ明めいはわかりにくかった。言いい替かえるなら、要よう点てんがはっきりしなかった。

  His explanation was hard to understand. To put it another way, the main point wasn't clear.