他大步走向舞台中央，准备开始演讲。

He ___strode to the center of the stage, ready to begin his speech.

她迈着大步穿过公园，看起来很自信。

She walked across the park with long ___strides, looking very confident.

这项新技术在节能减排方面取得了重大进展。

The new technology has made significant ___strides in energy saving and emission reduction.