Pervanadic acid
[化] 过钒酸
🧩 词语组成解析
🗣️ 情景例句
Well, it isn't the Watermill Inn,
算了，这不是Watermill Inn，
He should meditate on the problem.
他必须就那个问题好好地想一想。
Be careful! Don't throw your cigarette out of the window. If you do that, you may start a fire. Put it out in the ashtray.
当心！别把香烟丢到窗外。要是你那样做，会引起火灾的。把它熄灭在烟缸里。