You can substitute plain flour if you cannot find self-raising flour.

如果你找不到自发面粉，可以用普通面粉来代替。

《柯林斯英汉双解大词典》

Some of what has happened is plain-vanilla protectionism - raising barriers to imports.

其中有些是典型的保护主义措施——提高进口壁垒。

youdao

"In general, though, Part 2 is just plain hell-raising and scary."

一般来说，第二部分纯粹是冒险提心吊胆。

youdao

As Mr Greenspan made plain in his speech, an economic slowdown is what the Fed has been aiming to achieve by raising interest rates six times in the past 18 months.

ECONOMIST: Slowing down, to what? | The