pop up

名词 pop up:

1. a book (usually for children) that contains one or more pages such that a three-dimensional structure rises up when a page is opened
   同义词：pop-up book, pop-up
2. a short high fly ball
   同义词：pop fly, pop-fly, pop-up

动词 pop up:

1. appear suddenly or unexpectedly
   同义词：crop up, pop

1. He seems to pop up in the most unlikely place.
   在他似乎绝不可能到的地方，他往往就在那里出现。
2. As we walked along, we saw a rabbit pop up from its burrow and scurry across the field.
   我们正在向前走着，看到一只兔子突然从洞里跳出来，穿过田野。
3. He seems to pop up in the most unlikely places.
   在他似乎绝不可能到的地方，他往往就在那里出现。