Electroplatinizing
[化] 电镀铂
🗣️ 情景例句
but I think I can be of some help to you.
但我觉得我可以对你略有帮助。
What time does the plane take off?
飞机何时起飞呢？
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年内走的距离，