Xtr
[计]= eXTRa,[修]特别的，额外的，附加的
🗣️ 情景例句
What do you do when you are not working?
工作之余你有什么消遣活动？
I'll come. I give you my word.
我会来的。我向你保证。
After a long period of rain the river may overflow its banks.
久雨这后，河水会泛滥成灾，