虽然...但是... (suīrán...dànshì...)

虽然人工智能很厉害，但是它不聪明。(Although AI is impressive, it's not smart.)

虽然它很有用，但是它没有在想。(Although it's useful, it's not thinking.)

虽然人工智能很好用，但是我们要知道它的问题。(Although AI is useful, we need to know its problems.)

虽然科学家说大脑在二十五岁才发育好，但是这不代表二十五岁以前的人不知道对错。(Although scientists say the brain doesn't fully develop until 25, that doesn't mean people under 25 don't know right from wrong.)