batch的基本意思是指面包、糕饼等的“一炉”,引申可指人或物的“一批,一组,一群”,可用作量词与介词of连用修饰复数可数名词。

The first batch of cakes was burnt.第一炉蛋糕烤焦了。
Here comes a fresh batch of visitors.新到了一批来访者。
They were led out in batches and shot.他们被分批带出去枪毙。