Let's say disco, pub, (Q29)club, concert hall...
vt. I can't say … ：我可不能说…；我说不上…
He's dead? Well, I can't say I'm sorry.
vt. I must say;I have to say：我得说；我不得不说
I'm not happy about it, I have to say.
vt. I say!：我说；听着；喂；啊呀；哎呀
Oh I say, that really is a nuisance!
I say, waiter!
I say, what a gorgeous girl!
vt. I wouldn't say no：我不反对；我没意见
I wouldn't say no to a cup of tea, thanks.
vt. I wouldn't say … ：也不能说…（用于礼貌或婉转地否认）
I wouldn't say it was a total shock, but I was certainly surprised.
vt. I'll say that for sb;you can say that for sb：我得替某人说句话（通常用于表示某人优点不多，但有某一点可取之处）
He's usually smartly-dressed, I'll say that for him.
vt. having said that：话虽然这么说；话虽如此
These services allow you the opportunity to interact with other people online, having said that, you don’t have to meet up with anyone in person until you feel ready.
vt. if I may say so：如果我可以这样说的话
It doesn't sound very reliable, if I may say so.
vt. it says something/a lot for sb/sth that … ：表明/很能说明…有可取之处
It says a lot for her that she admitted her mistake.
vt. it/that goes without saying：不用说；不言而喻；显而易见
It goes without saying that if someone has lung problems they should not smoke.
vt. not to say much for sb/sth：说明…不怎么样
That doesn't say much for his manners.
vt. not to say：即使不是…；虽不能说…
It's risky, not to say downright dangerous to ski in these conditions.