这些杂志拥有非常年轻的读者群。

These magazines have a very young ___readership.

第一个问题已成为过去十年的主要议题之一，影响整个世界，因此它将吸引你的读者群。

The first one is an issue that has become one of the main subjects of the last ten years and affects the whole world, so it will interest your ___readership.

该报纸的读者群多年来显著增长。

The newspaper's ___readership has grown significantly over the years.