adj.间歇的；(眼睛等)突出的
n.爆音；机械舞
动词pop的现在分词形式.
The children were popping balloons. 孩子们把汽球弄得劈啪作响。
They were popping away at the rabbits all afternoon. 他们一下午都在用枪打兔子。
Champagne corks were popping (away) throughout the celebrations. 庆祝会上开香槟酒瓶塞的砰砰声不绝於耳。
adj.惊人的；使人吃惊的
