Stannometry
亚钖滴定
🗣️ 情景例句
Why was she working anyway? She's rich.
真弄不懂她当初为什么要工作。她是有钱人呀。
Nothing gives me more pleasure than learning English.
再也没有什么比学英语更让我高兴的事了。
Why didn't you tell me then?
为什么那时不告诉我呢？