v.（给…）更换工具， （给…）更换机械设备( retool的过去式和过去分词 ); 改组，革新

1.We must retool the town's economy.

[汉]我们必须对乡镇经济进行重组。

2.It includes help for manufacturers eager to retool for new industries.

[汉]同时也为帮助渴望重组新产业的制造商。

3.We had to retool for enlarging reproduction.

[汉]为了扩大再生产，我们必须更换机械设备。

4.In the computer industry, engineers have to retool frequently.

[汉]在电脑业中,工程师必须经常以新知识充实装备自己。