batch by batch and stage by stage

例句：

1. 1. The workers are making a batch of cookies for the party.
   工人们正在为聚会制作一批饼干。
2. 2. We need to make a batch of new clothes for the winter.
   我们需要为冬天做一批新衣服。
3. 3. The company has made a batch of new products this year.
   该公司今年推出了一批新产品。