They have very limited circulatory systems filled with a fluid called hemolymph, mostly full of metabolic stuff and immune cells.

循环系统非常有限，充满了一种叫做血淋巴液体，里面大部分是新陈代谢物质和免疫细胞。

The wasp snaps the cockroach's antennae in half, uses the broken pieces as straws to feed off its blood-like hemolymph, then leads it into a subterranean lair.

黄蜂折断了蟑螂触角，将触角节段用作吸管，吸取蟑螂体内类似血液血淋巴，然后把蟑螂带去她地下巢穴。

The carminic acid molecules are stored as clumps in her hemolymph – the insect equivalent of our blood – and ward off some would-be predators, like ants, and harmful microbes.

胭脂红酸分子以式储存在她血淋巴中——相当于我血液昆虫——并抵御一些潜在捕食者，如蚂蚁和有害微生物。