A methane molecule is composed of one carbon atom attached to four hydrogens.甲烷分子由1个碳原子与4个氢原子构成。Those that are aligned in the place are called equatorial hydrogens.那些在平面上定向的氢叫做平伏氢.Those that are aligned perpendicular to ...
对于很多加利福尼亚的印第安人而言,猫头鹰是圣物。The owl is sacred for many Californian Indian people.路德曾抨击腓特烈保存在维藤贝格的圣物.Luther had already criticized the relics which Frederick kept at Wittenberg.神鹰 、 橡树和橄榄是他们的神圣物.To both the eagle, the oak, an...
Davis won the 400m. hurdles in a new Olympic time of 49.3 sec.戴维斯以49.3秒的成绩刷新奥运会纪录,在400米跨栏赛跑中一举夺冠。There are several hurdles to be got over in this project.在这项工程中有一些困难要克服.I came to the hurdles and stood looking over into t...