You just open it, twist leaves, and you see a whole new world of minute insects, or little spiders of one millimeter, one-and-a-half, two millimeters long, and you can distinguish between the good ones and the bad ones.
Uno vuelve las hojas y ve un mundo enteramente nuevo de insectos diminutos, arañitas de 1 mm, 1,5 mm o de 2 mm de largo, y puede distinguir las buenas de las malas.