He notes that many species of algae pack a far denser punch energy-wise than the plants now used as energy crops.
他注意到许多种海藻与现在用来作为生物能源作物的植物品种相比，可压榨出能源的浓度要高出许多。
3
It would be wise to read and compare the nutritional labels when purchasing prepackaged snacks, especially the energy, fat and sugar content, because some nutrition claims may be misleading.