七个一组 heptad ; seven
七个一组的 septenary
七人一个卜戴伦 i'm not there
一个七天的节日 a seven-day festival
一个七岁的孩子 a seven-year-old child ; a seven-year s child
一个七岁大的男孩子 a seven-year-old boy
七个手指是一家 Seven fingers is
关于七巧板的一个定理 A Theorem on the Tangram
是一个七天的节日 Kwanzaa
古罗马的七个山丘之一 Capitoline
一个医生平均一年仅为每个病人开大约七个处方;而德国是这个数字的两倍。
On average doctors write just over seven prescriptions each year per patient; in Germany it is double.
他们说:“我们没准备好和一个一下子打死了七个人的人一起共事。”
"We are not prepared," said they, "to stay with a man who kills seven at one stroke."
你认为一口气打死七个的人会抓不住一根小树枝吗?
Do you think that could be anything to a man who has struck down seven at one blow?
All right. So it's 7 that are in chlorine, it's the same as fluorine or any of the others in that row or in that group rather.
好,氯有七个,跟氟或者在那一列,的其它元素一样。
One of the initial things that Keyes found is that there was as much as a ten-fold difference in rates of coronary disease.
凯斯首先发现的其中一项结果是,七个国家的冠心病发病率
So, let's go back to the notes, and let's fill these in, seven electrons. Another way you could have known them was to look at Lewis' notes here, where if look at this box carefully you see there are seven dots around the cube, so there are his seven valence electrons.
那么,让我们回到讲义,把它们填进去,七个电子,还有另外一种方法可以知道这些,那就是看看路易斯的讲义这里,大家可以看到这个立方体周围有七个点,因此有七个价电子。
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