单词 质心 例句 DEFINITIVE EXAMPLES 权威例句〔EXPERIENCE〕The hostages were relieved that their long ordeal was finally over. 人质心里放松了,他们那长久的苦难经历终于结束了。朗文写作活用 英语例句辞典收录了559068条英语例句在线翻译词条,基本涵盖了全部常用单词及词组的例句翻译及用法,是英语学习的有利工具。 相关内容:“质子数”例句“质差”例句“质对”例句“质子供体”例句“质子带正电荷”例句