Every piece of plastic we produce should have a clear path to being reused or recycled.

everything will be ok.

做官虽然讲究才学,但还是以品行为本。

So we beat on, boats against the current, borne back ceaselessly into the past.

Theorems are the milestones of mathematics.

市场比政府更能高效地分配资源，但它并非完美无缺。