当今用英语怎么说

当今用英语可以用 "today" 来表示。这个词源自古英语 "todæg"，意思是当前这一天。例句如下：

Today is Monday.
I have a lot to do today.
Today's weather is beautiful.

当然，也可以用 "nowadays" 来表示当今，意思是现在这个时代。例句如下：

Nowadays, people use smartphones more often than computers.
Nowadays, many people work from home.
Nowadays, climate change is a major concern for many people.