The opposite would be anti - existence, as the opposite of matter is antimatter.存在的对立面应该是 反 存在, 正如物质的对立面是反物质一样.Antimatter has been produced experimentally, but little of it is found in nature.反物质已在实验室中产生, 但还未在自然界中找到.I to...
Under optimum conditions, yield of anthraquinone reached 82.5 %.在优化的实验条件下, 获得了82.5%的收率.Prison conditions have become more brutal...监狱条件变得更加严酷。Some animal and plant species cannot accommodate to the rapidly changing condi...
Both women were unwelcoming, making little attempt to put Kathryn at her ease.两个女人态度都不友好，没有怎么去安抚凯瑟琳。My room was cold and unwelcoming.我的房间又冷又不舒服。His manner was cold and unwelcoming.他态度冷漠、很不友善。His manner was cold and unwel...