useful effect造句

例句与造句

1. Above : 3 - dimensional stacked layers of liquid crystal droplets could have some novel and useful effects on light that passes through them . image courtesy nasa
   上图：液晶微滴层层叠加成的三维体可能对穿透它的光线产生全新而有价值的影响。 nasa授权图片。
2. It's difficult to find useful effect in a sentence. 用useful effect造句挺难的