adj.突然伸出的
动词pop的过去式和过去分词形式.
He's only popped out for a few minutes. 他刚出去一会儿。
He's just popped down the road to the shops. 他刚才急匆匆地沿这条路去商店了。
Where's Tom popped off to? 汤姆一眨眼上哪里去了?
The rabbits popped out as soon as we opened the hutch. 我们一打开兔箱，兔子就突然跑出来了。
