相手 あいて選択 せんたく接続 せつぞく機能 きのうでしょう
aitesentakusetsuzoku kinōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 相手選択接続機能

1. Probably partner selection connection function.

Polite
Presumptive
Conjecture
Computing