In previous years, all of the singing (spring) individuals that I have recorded have been Sakhalin Leaf Warbler.

在过去几年，所有我记录到的有鸣唱的个体(春天)都是库页岛柳莺。

youdao

In previous years, all of the singing (spring) individuals that I have recorded have been Sakhalin Leaf Warbler.

在过去几年，所有我记录到的有鸣唱的个体(春天)都是库页岛柳莺。

youdao