Definition: when the appearance, form, or purpose of something is changed Level: C2
该国向民主的和平转型受到了全国性的庆祝。
The country's peaceful ___conversion to democracy was celebrated nationwide.
太阳能涉及将阳光转化为电力。
Solar power involves the ___conversion of sunlight into electricity.
将机械能转化为电能是发电机的基本原理。
The ___conversion of mechanical energy into electrical energy is fundamental to generators.
