Souring
v. 变酸；发酵；变质（sour的现在分词）
🗣️ 情景例句
Mr. Park is a devoted husband.
帕克先生是个忠实情深的丈夫。
We have adopted much more flexible methods in our dealings.
我们在具体操作方法上灵活多了。
I had a wonderful time here.
我在这里度过了难忘的时光。