gnat

小昆虫, 小烦扰英释中释nA gnat is a very small flying insect that bites people and usually lives near water

1 strain at a gnat,拘泥细节，迟疑于琐事

1 When you write for a blog, your audience consists of internet users who have the attention span of a gnat..当你写博客时，你的读者是网络用户组成的，他们的注意力范围就像一个小昆虫。

2 They, and we, and the smallest gnat in the grass are linked in the web of biodiversity - and the demise of one is a warning to all..它们、我们、以及草丛中的小昆虫都联结在生物多样性这张网上，其中一种的消亡就是对全体的警告。