Upperwing has pale greyish-white primary bases and often pale rufous or yellowish-brown forewing, paler than dark grey flight-feathers.

翼上初级飞羽呈现灰白色，翼前缘经常为淡棕色或黄棕色，比飞羽的深灰色要浅。

youdao

For almost all white collar jobs, email is the primary tool of corporate communication.

几乎对于所有的白领工作来说，电子邮件是公司沟通的主要工具。

youdao

For almost all white-collar jobs, email is the primary tool of corporate communication.

对于几乎所有的白领工作来说，电子邮件都是企业沟通的主要工具。

youdao

The majority of white voters in the primary supported his rivals, exit polls showed.

CNN: Obama hails win as candidates prep for Super Tuesday

Mrs Clinton won 72% of the votes of white Catholics in the Pennsylvania primary a nine-point improvement on her performance among whites as a whole and a 13-point improvement on her performance with white Protestants.

ECONOMIST: Lexington

DLC's primary targets are white males.

ECONOMIST: The Democrats