同学们分批进入展览会大厅。
The staff are sent here for professional training group by group.职员们分批被送到这里进行职业培训?。
By mutating the laws of humanity, these creative cosmic rays began to Pierce people's bodies, individual by individual, then group by group.通过变异人类的律法,这些创造的宇宙闪烁开始穿透人类的躯体,一个人又一个人,接着一个群体又一个群体。