堆: Ⅰ动词(堆积) pile up; heap up; stack 短语和例子把木柴堆在后院里 stack the firewood in the back yard; 大车上高高地堆满了水果和蔬菜。 the cart was piled high with fruit and vegetables. 谷仓里堆满了粮食。 the barn was heaped with gra
实验: experiment; test; trial run 短语和例子动物实验 animal experiment; 进行科学实验 conduct scientific experiments; 声学实验 test in sound; 用青蛙做实验 experiment (upon) on frogs; 富兰克林的实验表明闪电是一种放电。 franklin's experime
