And there are specific energies of those amino acids.

这些氨基酸有特定的能量。

Bohr’s model predicted that electrons orbit at very specific energy levels, which he called orbits.

玻尔的模型预测电子在非常特定的能级运行，他称之为轨道。

Jet fuel has a high " specific energy" , meaning it contains a lot of energy for how heavy it is, yet planes still need a lot of it, because they need to be able to fly literally around the world.

喷气燃料具有很高的“比能”，这意味着它包含的能量相对于它的重量来说很大， 但飞机仍然需要很多能量， 因为它们需要能够真正地环游世界。