All the time you are in doubt about the cause of your illness, you are fighting against an invisible enemy.(一直以来你都在怀疑自己的病因，你是在和一个无形的敌人斗争。)
The invisible group wasn't far behind the high-risk set, with more than 13% of them exhibiting depression.(看不见的那组在高风险组后面不远，其中超过13%的人表现出抑郁症状。)
I'd say the article is bringing attention to the student government organization, which is pretty invisible.(我想说，这篇文章引起了人们对学生自治组织的注意，这个组织是相当不显眼的。)
She felt invisible in the crowd.(她觉得自己淹没在人群中。)
The English language teaching sector directly earns nearly &1.3 billion for the UK in invisible exports and our other education related explores earn up to &10 billion a year more.(英语教学部门直接为英国赚取了近13亿英镑的无形出口收入，而我们其他与教育相关的探索每年多赚100亿英镑。)
Patterns that are invisible on the ground can be the most striking part of an aerial photograph.(在地面上看不见的图案可能是空中照片中最为醒目的部分。)
By what invisible power has this surprising metamorphosis been performed?(是什么无形的力量完成了这一惊人的蜕变？)
Because their behaviors are not usually seen as a red flag, these young people have been dubbed the "invisible risk" group by the study's authors.(因为他们的行为通常不被视为危险信号，这些年轻人被研究作者称为“隐形风险”群体。)
Without gravity to help circulate air, the carbon dioxide you exhale has a tendency to form an invisible cloud around your head.(如果没有重力帮助空气循环，你呼出的二氧化碳会在你头顶周围形成一个看不见的云状物。)
Milton wants to stand on top of the real world, to depict the coming and going of God in the invisible world.(弥尔顿想屹立于现实世界之上，去描绘无形世界中上帝的来来往往。)
