Nitration
n. 用硝酸处理, 硝化, 硝基置换\\n[化] 硝化; 硝化作用
🗣️ 情景例句
Hello. This is a representative of Zhongyou Department Store.
喂，您好。我是中友百货的。
He who has not tasted bitter knows not what sweet is.
不吃苦中苦，哪知甜中甜。
not as description or reminiscence.
不要靠描述和印象去感觉。