In return, the acacia feeds the ants a protein from its leaflets and nectar from its stalk.
作为回报，洋槐树的叶片会分泌一种蛋白质，连同它的主茎分泌的香甜汁液一起供蚂蚁食用。
The mosquitoes mostly live on flower nectar, but the female of the species needs a meal of human blood to have enough protein to lay her eggs.
蚊子大多以花蜜为生，但是雌性蚊子为了产卵，需要吸人血来提供充足的蛋白质。
The mosquitoes mostly live on flower nectar, but the female of the species needs a meal of human blood to have enough protein to lay her eggs.
蚊子大多以花蜜为生，但是雌性蚊子为了产卵，需要吸人血来提供充足的蛋白质。
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