A: This is a toast for good luck. Bottoms up!
祝大家好運(yùn),干杯!
B: Yeah, good luck, everyone!
對,祝大家好運(yùn)!
I'd like to propose I make a toast to....(為...)干杯。
A: I'd like to propose a toast to the newly married couple.
我要向新婚夫婦敬酒。
B: Good luck with your marriage. You will need it!
祝你們婚姻幸福!