求翻译：长期不吃动物蛋白会造成免疫力下降。长时间的纯素食一定会使得人体缺乏维生素B12、钙、铁、锌等微量元素，以至于对人体产生许多不利的影响。是什么意思？

Do not eat animal protein can cause long-term immunity. Long pure vegetarian will make the body lacks vitamin B12, calcium, iron, zinc and other trace elements, so that the human body produces many adverse effects.

Long-term Do not eat animal protein cause weakened immunity. Long hours of pure vegetarian will have 12 vitamin B, calcium, iron, zinc and other trace elements, to the extent that the body produces many adverse effects.

Does not eat the animal protein to be able for a long time to create the immunity to drop.The long time pure vegetarian diet can certainly cause the human body to lack Vitamin B12, the calcium, the iron, the zinc and so on the trace element, has many disadvantageous influences to the human body.

Long time without eating animal protein can cause immune system decline. Vegan for a long time will make the body lacks vitamin B12, calcium, iron, zinc, and other trace elements, that have many adverse effects on the human body.

Long time without eating animal protein can cause immune system decline. Vegan for a long time will make the body lacks vitamin B12, calcium, iron, zinc, and other trace elements, that have many adverse effects on the human body.