There 's nothing better at pollinating crops than bees .

对于农作物来说，没有什么比蜜蜂授粉更好的了。

A common solitary bee important for pollinating alfalfa in the western united .

普通的独居蜜蜂，在美国西部对苜蓿的授粉很重要。

The bee needs nectar and the flower needs pollinating .

蜜蜂需要花蜜，花朵需要传粉。

The bees also play a vital role in pollinating flowers to sustain vegetation .

蜜蜂也扮演传播花粉以维持植物生长的关键角色。

Effects on seeded rate in seed-making of hybrid cucumber with three different pollinating methods .

三种授粉方式对杂交黄瓜制种结籽率的影响。