经济学是一门不精确的科学。Economics is an inexact science.民间艺术研究中不精确的专有名词使定义更加混乱.The particularly loose terminology of folk art studies further confuses the matter of definitions.这个过程是不精确的,而且容易导致错误.The process an inexact science and ...
Flowers are often fertilized by bees as they gather nectar.花常在蜜蜂采蜜时受粉。Hummingbirds have discovered that nectar and pollen are very nutritious.蜂鸟发现花蜜和花粉是很有营养的.Insects are attracted to flowers by their colour, scent and ne...