Trichromate
三铬酸盐
🗣️ 情景例句
If we're all prepared to recycle paper, thousands of trees could be saved every day.
如果纸能被循环利用，那么每天千千万万的树木就可得以挽救。
I'm two years older than you are.
我比你小2岁。
Many people think that Canadians all over the country speak the same way.
许多人认为加拿大全国人的说法都相同。