Hello, I'm an expert in linguistics and communication. I'll be happy to help you with your question. English Answer: Yes, "Rbbb" can be considered a normal part of human speech, particularly when it comes to onomatopoeia or the imitation of natural sounds. It's often used to represent the sound of a motor or an engine, especially in informal or playful contexts. However, it's not a standard word in the English language and is not typically used in formal communication. It's important to note that the normalcy of any sound or word can be subjective and depends on the context in which it's used. 中文回答： 是的，“Rbbb”可以被认为是人类语言中正常的一部分，特别是在拟声或模仿自然声音时。它通常用来代表发动机或马达的声音，尤其是在非正式或有趣的语境中。然而，它并不是英语中的一个标准词汇，也不常用于正式交流。需要注意的是，任何声音或词汇的正常性都是相对的，取决于它被使用的上下文。 read more >>

In summary: Right bundle branch block patterns with a normal duration of QRS complex are quite common in healthy people. There is no evidence to suggest established RBBB carries other than a normal prognosis (1)read more >>