Three bees are placed inside a shoe box-sized "sniffer box".

这些蜜蜂被放进一只鞋盒大小的“嗅探盒”中。

youdao

Three bees are placed inside a shoe box-sized "sniffer box".

这些蜜蜂被放进一只鞋盒大小的“嗅探盒”中。

youdao