Right now, the project is in the prototype construction phase where scientists are trying to create the genetically modified mussels in the lab.

目前，该项目已进入原型建设阶段，科学家正在实验里对金贻贝进行基因改造。

Take building a dam, for example, which usually entails surveying the land, a massive excavation phase, and then an equally massive construction phase.

以建造水坝为例，这通常需要测量土地、大规模挖掘阶段，然后是同样大规模的施工阶段。