流感 りゅうかん予防 よぼう注射 ちゅうしゃでしょう
ryūkanno yobōchūshadeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 流感の予防注射

1. Probably a flu shot.

Polite
Presumptive
Conjecture