I beg your pardon.
Could you say that again?
(2) excuse me
(3) Can you repeat it
(4) I am sorry,I can't catch you
(5) I am sorry ,I can't follow you
(6) please say it again
(7) I want to listen to it once more .
It is too late for me to speak/talk.
I didn't get on to what you wChure saying. 我听不懂你在说什么。 I could make nothing of what you said. Wo听不懂你说的话。 I can't understand what you mean. Wo听不懂你说的话。
I can't follow what you said. I can't understand the meaning of your saying. I can't understand what you are saying. Du可以，看你喜欢哪种表达方式了！