新年

The enzyme digestion method can effectively isolate mesenchymal stem cells with a high proliferative ability and multipotent differentiation ability.

酶消化法可有效的从胎盘组织中分离间充质干细胞，增殖能力强，具备多向分化能力。

B:Look, there is a 'No Parking' sign in front of us.

您看，前面的一个"禁止停车"的指示牌。