It's always possible for a witness to augment or clarify their answers in writing after the fact. That won't be a problem.
Generally, Mr. Dong, the length of the answer is to match the length of the question. You're right that Mr. Lawrence did interrupt the witness a couple of times, but he did allow him as much time as he took to ask the question. I didn't see him as being entirely unfair, but the answer to your question is yes, absolutely.
With that, Mr. Dong, you have the floor for six minutes.