Commutate
vi. 使方向轉換, 整流
? 同義詞
??? 情景例句
It was a pleasure having you. Please come again.
和你在一起我們非常榮幸，請有空常來。
I hope this gathering will keep harmony till the end. Thank you.
我祝愿這個聚會從頭到尾充滿和諧。謝謝大家。
Every solid object will reflect a sound, varying according to the size and nature of the object.
任何固體者反射聲音，反射的聲音因物體的大小和性質的不同而不同。