he city and the Commonwealth have lost a great leader.
这座城市和这个州失去了一位伟大的领袖。
Their contribution was of great worth.
他们的贡献具有伟大的`意义。
We'll have a great time, you'll see.
你瞧着吧，我们会很开心的。
You've been a great help, I must say.
依我看，你真是帮了个大忙啊。
You're a great help, I must say!
我得说，你可没少帮忙！