The hognose snake puts on an impressive bluff, (hissing and rearing back), (broadening the flesh behind its head the way a cobra does and feigning repeated strikes), but it 『has no dangerous fangs and no venom』, and, eventually, if its pursuer is not cowed by the performance, 『will fall over and play dead. 』
前面()之间的成分互相并列,做修饰成分修饰前面的puts on an impressive bluff,后面『』之间的成分互相并列