Oxivor
水合氯氧化銅
??? 情景例句
But first you have to smile.
但首先你得笑一笑。
Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子應(yīng)是最經(jīng)濟的尺碼，這些瓶子可免費保存兩個月。
During these tests she was able to read a newspaper through an opaque screen and,
在這些測試中，她能隔著不透明的屏幕讀報紙。