Today in Engpsh can be referred to as "Today". It is a common word used in Engpsh to refer to the current day. It originated from the Old Engpsh "Tǣdæg".
Example sentences in Engpsh and their Chinese translations:
Today is Monday. 今天是星期一。
What are your plans for today? 你今天的计划是什么？
I will see you again today. 我今天再见你。