Cationotropy
阳离子移变(现象)
🗣️ 情景例句
I hear the exams will be very tough.
我听说考试挺难的。
Rising volcanic ashes
升起的火山灰
and it is only in the seas and rivers, and sometimes lakes, where mud and sit have been continuously deposited,
所以只有在泥沙不停淤积的海洋和江河里，有时在湖泊里，