在多个国家内的蜜蜂群体，包括美国，看起来最近几年都在显著下降。

Honeybee populations in many countries, including the United States, appear to have declined markedly in recent years.

youdao

在多个国家内的蜜蜂群体，包括美国，看起来最近几年都在显著下降。

Honeybee populations in many countries, including the United States, appear to have declined markedly in recent years.

youdao