Do you understand? 懂吗? Understood? 懂了吗? Is that clear? 清楚了吗? Get the picture? 你了解情况吗? Do you know what I mean? 你懂我说的意思吗? Are you listening to me? 你在听吗? Are you blind? 你不知道吗? You know what I'm talking about. 你明白我说的意思吧。 I said that, didn't I? 我是那样说的吧? Do you know that? 你知道那事吗? Do you happen to know...? 说不定你知道……吧? I can't tell the difference. 我辨别不出来。 Can you hear me? 你听得见吗? Did you hear me? 你听见我说的了吗?