How to say "Could you speak more slowly?" in Chinese

This is a polite request built with 可以 (kěyǐ, 'can'), the verb 说 (shuō, 'to speak'), 慢 (màn, 'slow'), 一点 (yìdiǎn, 'a little'), and the question particle 吗 (ma).

Use this whenever you don't catch what someone says and need them to slow down. It's polite and works in any situation, from doctors to airport staff. Don't use it if you just didn't hear; instead say 请再说一遍 (qǐng zài shuō yí biàn, 'please say it again').