what can it be meaning in Chinese

它是什么呢

First fish : what a shadow ! what can it be
第一条鱼：这么大的阴影！会是什么东西？
What can it be that keeps him
究竟是什么事情妨碍他呢？
There is a strange vehicle turning into our street ; what can it be
有一辆陌生的车拐进了我们这条街，会是什么事呢？
What can it be
它是什么呢
Tess drew her breath fearfully , and angel , perplexed , said - what can it be ? feeling sideways they encountered another tower - like pillar , square and uncompromising as the first ; beyond it another and another
他们向旁边摸去，又摸到一根和第一根石柱同样高大坚硬的方形石柱，然后又摸到一根，再摸到一根。