“可以说”的英语可以翻译为：in a manner of speaking，as it were，so to speak...

你可以说我们一直不走运吧。You might say that we've been victims of circumstance.可以说英国人不够强势。It could be argued that the British are not aggressive enough.可以说，他俩都是绝对可靠的人。Both of them, I may say, are thoroughly reliable men....