Except for the transitional elements, valency electrons are in the outermost electron shell.除去过渡元素外, 价电子位于最外面的电子层.Hung believes the electrolyzed water steals electrons from molecules that the bacteria need for survival.黄...
This defender’s ability to score vital goals has often proved a trump card.这名防守队员在关键时刻进球得分的能力常常成了整个队的制胜法宝。an indefatigable defender of human rights不屈不挠的人权捍卫者He shouldered off a defender and shot at goal.他用肩膀挡开防守队员,然后射门.a...