You can often choose between plain white or coloured and patterned scarves.

你通常可在原白色或彩色带图案的围巾中进行选择。

《柯林斯英汉双解大词典》

She momentarily laid the painting in her lap and I could see it was nothing but a plain white blank.

她立刻将油画放在她大腿上，我看到的只是白色的空白。

youdao

Last week, I was sent a book with a plain white cover and the word NO on the front in huge black type.

上周，我收到一本白色封皮的书，上面的“不”使用了巨大的黑色字体。

youdao

Inside the suitcase is a plain piece of white paper and the children were asked to draw the things they think they would need on the trip. Sometimes they get they wouldn't need.

行李箱里面是一张普通的白纸,我要求孩子们,在纸上画出他们认为必要的,旅行用品，有时候他们画出来的并不需要。

麻省理工公开课 - 媒体、教育、市场课程节选

" Black type on a plain white background simply says, "Use what you've got.

FORBES: MTV's Green Crusade

But high prices for plain white LED lights have limited their adoption in homes, offices and commercial buildings.

FORBES: Bridgelux Announces $20 LED Light

The nonlogo logo is a plain white spot, a statement against corporate branding.

FORBES: Self-Loathing Sneakers