点击下方单词,选择对的这个单词
1. 摁扣;按扣A popper is a device for fastening clothes. It consists of two pieces of plastic or metal which you press together.
1. a container for cooking popcorn
2. a container of stimulant drug (amyl nitrate or butyl nitrite)
多通过句子记忆单词,而不是单独死记硬背。