Can you speak a little slower?
你能讲慢一点吗？
Could you speak a little slower?
你能说的慢一点吗？
Can you speak a little slower, please?
你能说得慢些吗？
Could you speak a little slower, please?
您能说的慢一点吗？
Could you speak a little slower, please?
请你慢点说好吗？
Pardon me? Could you speak a little slower?
对不起，你能说慢一点吗？
I'm sorry, but can you speak a little slower please?
如果对方说话太快，可以大胆的请他们慢点说。
Sorry, my English isn't so good. Could you speak a little slower?
对不起，我的英文不太好，可以请你说慢点吗？
It would help if you could try to speak a little slower.
请你尽量放慢说话速度。
You'd better speak a little bit slower so that you can make yourself understood.
你最好说慢点，这样别人可以听懂你的意思。
You'd better speak a little bit slower so that you can make yourself understood.
你最好说慢点，这样别人可以听懂你的意思。
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