而且, 这一目标或许要早于防止污染.Indeed, this strand may well predate the anti - pollution effort.在世界上大部分地区, 以重量表示价值的金属作为货币使用早于硬币.Metal, valued by weight, preceded coins in many parts of the world.测色学的基本概念早于1853年由格腊斯曼加以阐述.The basic con...
Many senior managers are technologically illiterate.许多高级经理都对技术知之甚少。Doped silicon and germanium are technologically the most important types of semiconducting material.添加硅和锗在工艺上是半导体物质中最重要的类型.We never should have saved the...
We just sat and talked for half an hour or so.我们只是坐了一会,聊了大约半小时.In a day or so he will be as good as new.他大概一天工夫就会恢复过来。There was nothing more he wanted, or so he thought.他再无所求，或者说他是这么想的。...