Thiorhodaceae
色硫菌科
🗣️ 情景例句
And what happened?
发生什么事呢？
There's no such thing as a free lunch.
天下没有白吃的午餐。
The conditions of society are such that skills have to be paid for in the same way that goods are paid for at a shop.
社会上的情况就是如此，技术是必须付钱去买的，就像在商店里要花钱买商品一样。