Antiderivative
[机] 反式衍生物
🗣️ 情景例句
You may be offered coffee, and then you should immediately announce the reason for your visit.
他们会给你冲咖啡，然后你应该尽快说明来意。
That reminds me.
那提醒了我。
On Wednesday evening, we went to the Town Hall.
星期三的晚上，我们去了市政厅。