craft union

例句：

1. 1. The crafts union is calling for a strike to demand better working conditions.
   工艺联盟正在呼吁罢工，要求改善工作条件。
2. 2. The union represents workers in the metalworking industry.
   该工会代表金属加工行业的工人。
3. 3. The union has been negotiating with management for weeks without success.
   工会已经与管理层进行了数周的谈判，但未取得成功。