hope so 但愿如此；希望如此；希望吧；但愿如斯

【例句】
'Is he the kind of man who can be as flexible as he needs to be?' — 'Well, I hope so.'
“他是那种能够灵活变通的人吗？”“嗯，希望如此。”

I hope so. I'd like to make a complaint, the goods you sent to us seem to be out of joint with your samples.
但愿能帮上。我想提一个意见，你们发来的货物似乎与你们的样品不相称。