Superoctave
双八度音栓
🗣️ 情景例句
I really appreciate
我真的很感谢
We know that you are leading exporters of coal and you can provide the quantity we need.
我们知道贵方是主要煤炭出口商，能满足我们的需求量。
Winter lasts from November to January and is very cold.
冬天11月持续到到1月，