她用橡皮筋和回形针制作简易手机支架的巧妙让全班惊叹。

Her ___ingeniousness in making a simple phone stand with rubber bands and paper clips amazed the whole class.

他用一个简单的纸夹解决了复杂的问题，展现了他的聪明才智。

He solved the complex problem with a simple paperclip, showing his ___ingeniousness.