Carnauba is the hardest natural occurring wax available.巴西棕榈是一种天然的最硬物质.He skirted the hardest issues, concentrating on areas of possible agreement...他避开了最棘手的问题，将精力集中于有可能达成一致的领域。Bridge design is probably the hardest brain...
You have to do everything you can. You have to work your hardest. And if you do, if you stay positive, then you have a shot at a silver lining.你必须全力以赴，最大限度地去努力。如果你这么做，并且保持乐观，你就会看见乌云背后的幸福线。He skirted the hardest issues, c...