Upgradation
升级；改善；提高
🗣️ 情景例句
Yes, I'm quite satisfied. That would be more than I have expected.
我很满意，比我期望的要多。
I don't seem to have any luck today.
我今天运气不好。
Needless to say, the bigger the risk an insurance company takes, the higher the premium you will have to pay.
不用说，保险公司承担风险越大，你付的保险费也就越高。