They're going to destroy it in a couple of days.
---What do you mean “destroy”?
他们几天后就要毁掉它（那艘船）。
---毁掉是什么意思？

发音词汇语法讲解
1.音标讲解/发音细节
going to=gonna

2.语音技巧
连读：destroy-it,in-a,couple-of
重读：destroy,couple,days,what,mean,destroy
弱读：They’re,going,to,it,in,a,of,do,you

3.英语口语词汇:
destroy  /dɪ'strɔɪ/ 破坏、毁坏

4.英语口语翻译：
这栋楼被大火彻底烧毁了。
This building was completely destroyed by fire.