Retooling, or recasting new toy moulds, is a slow and expensive process.

更换机器或者重新铸造新的玩具模具都是一个耗时伤财的过程。

Retooling sounds like a lot of work.

工具更改听起来似乎有很多工作要做。

This alone is worth the cost of retooling.

相对于工具更改的成本，单凭这一项就是物超所值的。

Is there a new arms race-or just overdue retooling of armies?

新的军备竞赛——或者仅是迟到的武器更新？

To produce another model required closure of the line and expensive retooling.

若想更换产品型号则需要关闭生产线并进行昂贵的重组。