Umformer
变换器, 变流机, 直流变压器
🗣️ 情景例句
Yes, I know that.
是的 ，我知道。
The best horse needs breeding, and the aptest child needs teaching.
最好的马要驯，最伶俐的孩子要教。
You have to be able to plan your work so that all your jobs will be finished in time.
以便你的工作能及时完成。