Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.
不要担心你在数学上遇到的困难；我敢保证我遇到的困难比你还大得多。
The future of steel lies in recycling and reducing carbon emissions.
Science is not just about accumulating facts; it's about understanding the mechanisms behind them.
进化是一个漫长的过程。
不要每天吃饱整日无所用心，也不要舍弃每一分一秒的时光。
什么人背后不被人说，又有谁在别人面前不去议论人呢？
I try to avoid clichés and strive for originality in my work.