Well, there are various reasons in fan fiction. It could be that he was exposed to a strange energy field that affected his voice box. Or maybe it was a result of a risky experiment gone wrong.
Yes, in some comic storylines, Bumblebee did lose his voice.
In many fan fictions, Fleur might lose due to unforeseen circumstances or the clever strategies of her opponents.
Odin's loss of his eye was a significant act. He did it to gain profound wisdom and insights. This sacrifice was part of his journey to become a more powerful and knowing deity.
The bear lost his tail because he was tricked by a fox. The fox told the bear to put his tail in the hole in the ice to catch fish, but when the ice froze, the bear's tail got stuck and broke off.
The bear lost his tail because of his own naivety. A fox tricked him into staying in a frozen hole for too long, causing his tail to freeze and break off.
The reason Wu Zhu lost his memory was due to the Temple's intervention and the influence of external factors. In the battle with the Temple Envoy, Wu Zhu's memory had been damaged, and he had forgotten everything related to the Temple. In addition, all his memories had been erased by the Temple and he had been assigned the mission of assassinating Fan Xian. Although he had lost his memories, Wu Zhu still protected Ye Qingmei's bloodline and became Ye Qingmei and Fan Xian's guardian. Wu Zhu's identity was the guardian of the temple. He was also an intelligent robot in the military museum that was built before the nuclear explosion on Earth. His duty was to protect the safety of the temple.
The reason Wu Zhu lost his memory was because his memories had been erased by the Temple. In the battle with the Temple Envoy, Wu Zhu's memory had been damaged, and he had forgotten everything related to the Temple. In addition, he was also assigned the mission of assassinating Fan Xian by the Temple. Although he had lost his memories, Wu Zhu still protected Ye Qingmei's descendants and ensured their safety. Wu Zhu was the guardian of the temple and an intelligent robot of the military museum that was built before the nuclear explosion on Earth. His duty was to protect the safety of the temple. Although Wu Zhu was a robot, in his interactions with Ye Qingmei and Fan Xian, he gradually developed human feelings. Although he had lost his memory, Wu Zhu still protected Fan Xian. In the end, he did not carry out the order to kill Fan Xian.
The reason Wu Zhu lost his memory was due to the Temple's intervention and the influence of external factors. In the battle with the Temple Envoy, Wu Zhu's memory had been damaged, and he had forgotten all memories related to the Temple. In addition, all his memories had been erased by the Temple and he had been assigned the mission of assassinating Fan Xian. Although he had lost his memories, Wu Zhu still protected Ye Qingmei's descendants and ensured their safety.
The reason Wu Zhu lost his memory was because his memories had been erased by the Temple. In the battle with the Temple Envoy, Wu Zhu's memory had been damaged, and he had forgotten everything related to the Temple. In addition, he was also assigned the mission of assassinating Fan Xian by the Temple. Although he had lost his memories, Wu Zhu still protected Ye Qingmei's descendants and ensured their safety.
The reason Wu Zhu lost his memory was because his memories had been erased by the Temple. In the battle with the Temple Envoy, Wu Zhu's memory had been damaged, and he had forgotten everything related to the Temple. In addition, he was also assigned the mission of assassinating Fan Xian by the Temple. Even though he had lost his memories, Wu Zhu still protected Ye Qingmei's descendants and eventually killed the Qing Emperor. Although Wu Zhu was a robot, after following Ye Qingmei and Fan Xian, he developed human feelings. Even though Wu Zhu's memories were becoming more and more blurry, he finally remembered his past with Ye Qingmei and killed the Qing Emperor for revenge. Thus, Wu Zhu lost his memory because the Temple had erased all of his memories. However, he eventually recovered a portion of his memories and retained his human feelings.