Tetramethide
四甲基金属
🗣️ 情景例句
It was a gradual process, involving many factors.
这是个渐进的过程，涉及到方方面面。
His thinking is behind the times.
他的想法赶不上时代。
The train was traveling at 120 miles an hour.
火车时速一百二十英里。