They may be wise to err on the side of caution.他们过于谨慎也许是明智的。To err is human, and nobody likes a perfect person.是人都会犯错，而且谁也不喜欢完人。To err is human.[谚]人皆有过....
Further on, we can specify an algebra that consists of axioms for commutativity, distributivity, associativity, etc.进一步的, 我们可以定义包含交换律 、 分配律 、 结合律等公理的代数....
We strolled past tinkling fountains and perfumed gardens.我们漫步经过泉水叮咚的喷泉和芬芳四溢的花园。'I go through no streets and past no fountains.“ 我不从街上走,也不从泉水过.Both fountains were going furiously and both pumps bailing with might and...