Petrox
石油氧化物
🗣️ 情景例句
Dad.
爸爸。
I used to set my alarm clock for exactly 7 a.m.
我过去常将闹钟调为上午7点整。
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。