世界建立在化学之上，而我们才刚刚开始理解它是如何构建的。
The steel industry must embrace sustainability or risk becoming obsolete.
Anon, who wrote so many poems without signing them, was often a woman.
荣誉就像一座崎岖无滩的孤岛；一旦离开，就再也无法返回。
如果我们为之奋斗，煤炭的未来是光明的。