Predevelopment
前期开发; 预研
🗣️ 情景例句
What? You what?
什么？ 怎样？
If this shirt doesn't fit,may I bring it back later?
如果这件衬衫不适合，我以后可以带回来换吗？
He wanted to buy a $300 watch for his wife,
他走进一家高级商店，要为妻子买一块价值300英镑的手表。