Perlatolic acid
[化] 配列地衣酸
🧩 词语组成解析
🗣️ 情景例句
Haven't I seen you before?
我以前没见过你吗？
He feels resentment at the interruption.
他因被人打断而恼怒不已。
I arranged to meet Jane after work last night but she didn't turn up.
我昨晚安排下班后见简，但她没来。