Empretron
汞弧离子管
🗣️ 情景例句
How much interest will my money earn?
我的钱的利息是多少？
I'm afraid it won't be cold enough for a snowfall.
我恐怕天不会冷的下雪。
The objects on display were pieces of moving sculpture.
展品都是些活动的雕像。