When you surround a coronavirus with water, the hydrophobic effect gives the bonds within the membrane their strength.

当你用水裹住新冠病毒时，它的疏水效应会让膜内结构更坚不可摧。

Our final step is to add enough hydrogen atoms to give every carbon atom 4 bonds.

我们的最后一步是添加足够的氢原子， 使每个碳原子有 4 个键。

That is hard, because economists do not know what the true, justified interest rate is for any given bond.

这很难，因为经济学家不知道任何给定债券的真实合理利率是多少。

Being transported back 500 years gave us our first bond with France, a country filled with medieval villages, chateaux ruins and ancient stone fountains.

穿越回500年前，我们第一次与法国建立了联系，这个国家到处都是中世纪的村庄、城堡遗址和古老的石头喷泉。

If your disposal of the money in question has been sensible, wise, or unselfish, it is in our power to give you bonds to the value of fifty thousand dollars.

若你在这笔钱的处理上明智聪慧，或者无私，我们将有义务将5万美元的遗产交付与你。