でしょう
1
it seems;I think;I guess;I wonder
conjectural form of polite copula です; でしょ is less polite
See also:
だろう
これは本物のダイヤでしょう。
This is probably a real diamond.
2
right?;don't you agree?
「確かにそこまで美人だと逆に引いちゃいますね」「でしょう」
"Certainly if someone is _that_ beautiful you'd draw back from approaching her." "Thought you'd agree."