Proplatinum
(pl. -na)[冶]镍银铋合金
🗣️ 情景例句
Oh, you've been here before.
噢，你以前来过的。
What's your nationality?Are you American?
你的国籍是什么?你是美国人吗？
We had to climb over some rocks and it started to rain.
我们不得不爬过一些岩石，这时开始下起雨。