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...
cogitate mischief against sb.想坏主意害人...to cogitate on the meaning of life.认真思考生命的意义cogitate upon sth.慎思某事Although I like being around people, I do need my quiet time to cogitate.我喜欢跟人交往但也喜欢独处思考....
Our resources in technical knowledge are imponderable.我们的技术知识资源是无法估量的.Our imponderable resources in knowledge are constantly growing and are inexhaustible.我们无法估量的知识资源是不断发展永不枯竭的.imponderable questions深奧的问题The effect of hi...