澳大利亚是世界上主要的羊毛生产国之一。

Australia is one of the world's main ___producers of wool.

例如，在一些国家，生活在农村地区的人们实际上是小麦和日常所需肉类的主要生产者。

For example, in several countries people who live in the countryside actually are the main ___producers of wheat and also the meat that people need in their daily life.

这家公司是亚洲电子设备的主要生产商。

The company is a leading ___producer of electronic devices in Asia.