更多近期的地质研究证明了13000年前的冰川消退现象和整个加拿大不列颠哥伦比亚省主要沿海地区内无冰区的存在。
More recent geologic studies documented deglaciation and the existence of ice-free areas throughout major coastal areas of British Columbia, Canada, by 13,000 years ago.
这种行为上的倒退现象在男孩中更加普遍。
移植成功率为100%,无自然消退现象;
The transplantation was 100% successful and there was no natural fadeaway phenomenon.
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