Reductometry
还原滴定法
🗣️ 情景例句
He is in conference right now.
他现在在开会。
Long time no see.
好久不见。
Nevertheless,I managed to creep down into the living room for two days before anyone found me out.
不过开头两天我还是成功地蹑手蹑脚地来到楼下起居室，被谁也没发现。