For each method in your original interface, the asynchronous version must have a matching method with the return type changed to void and an additional parameter of type AsyncCallback.

对于初始接口中的每个方法，异步版本必须有一个返回类型更改为void的匹配方法和一个asynccallback类型的附加参数。

youdao

When you type a closing bracket, both it and its matching bracket remain highlighted for a few seconds, or until you type another key or move the cursor.

输入右括号后，右括号和其对称的左括号都会保持反白显示数秒钟，或是直到您按下其他按键或移动游标为止。

youdao

However, we now live in a new type of economy and one of its most exciting developments is paired-matching.

FORBES: TED Over, onto SXSW But How Does the Ideas Economy Help You?

It doesn't, which can lead employees with that type of plan to worry about their employer's ability to keep matching contributions.

FORBES: Magazine Article