These insects are very difficult to eradicate.

这些昆很难根除。

Insects propagate themselves by means of eggs.

昆以产卵繁殖后代。

The lizard darted out its tongue at the insect.

蜥蜴伸出舌头去吃小昆。

He catalog(ue)d all the insects in his collection.

他将收集昆编成目录。

Chemicals are used to keep the insects down.

化学药品用于阻止昆滋生。

He decided to specialize in entomology after graduation.

他决定毕业后专攻昆学。

The bird caught a bug on the fly.

那鸟在飞行中捉住了一只昆。

A spider spins a web in which it catches insects and bugs for its food.

蜘蛛结网, 用于捕捉各种昆。

The wing is a flattened evagination of the dorsal body wall.

翅是昆出物。

Cockroach is also called dictyoptera and belongs to blattaria of insecta.

蟑螂又名蜚蠊，属昆纲蜚蠊目。

Some communicable diseases are transmitted only through the agency of insects.

某些传染病只通过昆来传播。

Insects are attracted to flowers by their colour,scent and nectar.

昆为花色彩、香气和花蜜所吸引。

You can catch these insects by tempting them to fly into a trap.

你可以引诱这些昆飞进罗网从而捉住它们。

Some communicable diseases are transmitted only through the agency of vermin or insects.

某些传染病只通过害和昆来传播。

Leaving some fields fallow provided a natural check on insect populations.

让一些土地休耕是自然控制昆数量办法。

I can’t rationalise my absurd fear of insects.

我怕昆,毫无道理,不能合理地解释。

Cytochrome P450s of the insects play an important role in the insect resistance and detoxifcation metabolism.

昆细胞色素P450在昆抗药性、解毒代谢等方面具有重大研究价值。

This insect makes its strange noise by rubbing its back legs together.

这只昆摩擦它两条后腿发出一种奇怪声音。

Octopamine(OA) constitutes one of biogenic amines in the invertebrate nervous system.

章鱼胺(OA)是昆体内痕量神经活性物质。

Some people exterminate garden insects by spraying poison on the plants.

有些人在植物上喷撒毒剂以杀死花园内昆。