streak

暴风雨过后，云层中出现了一道金色的光带。

After the storm, there was a golden ___streak in the clouds.

尽管他通常很安静，但有时会显露出顽皮的一面。

Though usually quiet, he has a playful ___streak that sometimes shows.

她已经连续三周坚持健身，打破了以往的运动记录。

She has maintained a fitness ___streak for three consecutive weeks, breaking her previous exercise record.