Come on. It's normal. Now the business is hard to do. Yeah, you are right. We must work and study hard.
加油。很正常。生意很难做。你说的有道理，我们必须努力学习和工作。
It is hard to find COX-2 positive cells and apoptosis cells in normal brain tissue.
正常脑组织内未观察到明显COX - 2阳性细胞及凋亡细胞。
It is hard to find COX-2 positive cells and apoptosis cells in normal brain tissue.
正常脑组织内未观察到明显COX - 2阳性细胞及凋亡细胞。
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