Commutate
vi. 使方向转换, 整流
✅ 同义词
🗣️ 情景例句
Please try to keep relaxed, sir.
别太紧张，先生。
He guessed the train would come in early.
他猜想火车会很早到达。
He was smiling hopefully.
他满怀希望地微笑着。