ちょう こう速度 そくど撮影 さつえうでしょう
chōkōsokudo sa' eudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 超高速度撮影

1. High-speed shooting, likely.; Probably high-speed footage.

Polite
Presumptive
Conjecture