• 变为

switchbox转换开关盒,配电箱switchn.转换；开关；鞭子v.改变；交换；转换；鞭打Switchyard mirror mount编组站镜架Switches for appliances器具开关switchable polarization极化切换switched virtual circuit交换式虚电路Switch magnet reluctance开关磁阻switching power supplies开关电源switch a circuit back to使电路回复到switching discharge tube交叉放电管switch off automatically自动断电switch to modern methods改用现代方法

1. They are turning waste land into paddy fields.
   他们正在使荒地变为稻田。
2. Heat can transform water into steam.
   热能使水变为蒸汽。