Sap passes right through the aphides' bodies, only getting a little thicker and sweeter.

汁液直接流过虫的身体, 结果只是变得更稠、更甜。

In some species, such as aphids, the flightless morph lacks wings and is called the apterous morph.

一些昆虫种类，如虫，出现无翅个体，被称为无翅型。

What with the dry weather and a plague of greenfly, my roses are very disappointing this year.

由于天虫灾害，今年我的玫瑰花长得非常令人失望。