Electric eels are long and usually gray-brown in color.

电鳗很长，通常为灰褐色。

youdao

Fat people see all sides. The sides fat people see are rounded blobs, usually gray, always nebulous and truly not worth worrying about.

胖人看到事情的方方面面，他们看到的都是圆圆的一滴，一般是灰色的，总是模糊不清，而且不值得担心。

youdao

Mold is usually green, white, black or gray.

霉菌通常为绿色、白色、黑色或灰色。

youdao

And although the dining room looks fit for guests dressed in their finest togs, visitors--as few as 12 but rarely more than 24--usually wear gray sweat suits (supplied by the spa) to meals at group tables.

FORBES: Cal-a-Vie Reverie

Rob himself long gray hair usually pulled back in a ponytail, cigarettes his body spray could be reclusive to the point of sullenness.

FORBES: Ruined Skyline

When the family wants privacy, they close a big gray curtain that usually hangs to the side.

WSJ: Tiny New House, Old Kyoto Soul