n.沙堡;
例句:
I drew a giant sandcastle myself.
我自己画了一个巨人的沙城堡.
The sandcastle worm , as the beast is known, lives in a mineral shell.
沙堡蠕虫生活在矿壳中.
When we're children a sandcastle is very important to us.
当我们是小孩子的时候,沙城堡对我们来说很重要.