In some women, most often black women, the two X chromosome each encode a different G6PD isoenzyme.

在一些妇女，特别是黑人妇女，两条x染色体各自编码一种不同的G6PD同工酶。

youdao

Black players often had to endure racist taunts.

黑人运动员经常得忍受种族歧视性的奚落。

《牛津词典》

As Rosenblatt notes, criticism of Black writing has often served as a pretext for expounding on Black history.

正如罗森布拉特所指出的，对黑人作品的批评常常被用作阐述黑人历史的借口。

youdao

Often the seagulls came very close and stared at the men with black bead-like eyes.

VOA: special.2010.03.06

The color black is used often in expressions.

VOA: special.2009.11.15

They must carefully balance the needs of an often demanding black constituency white ethnic population.

CNN: From Protest To Politics

It was here that the pillars of our democracy were built, often by black hands.

WHITEHOUSE: President Obama Speaks at the National Museum of African American History and Culture Groundbreaking | The White House

Today, we jump ahead to the man who often headlines Black History Month: Dr. Martin Luther King Jr.

NPR: MLK Speech On Vietnam Gripped Washington