Saltpetering
泛堿
??? 情景例句
and they're so kind to me.
他們對我真好。
The post office is in the middle of the block, You can't miss it.
那郵局就在街區的中間，很好找。
It was warm last Sunday, so I went and sat on the river bank as usual.
上星期日天氣很暖和。于是我和往常一樣，又去河邊坐著。