当你购物时，首先，你需要选择可以退税的商店。

First, you need to choose a shop that operates the VAT Retail Export Scheme.

youdao

当你购物的时候，多多留意发生在你身边的对话，然后立刻翻译成英语。

Pay attention to conversations that occur around you while you are shopping and translating it immediately.

youdao

当然，当你购物的时候，特别是买面包牛奶等小东西时，你完全不会有钱方面的问题。

To be sure, money is so handy when you want to buy things, especially frills like bread and milk.

youdao

Of course there's a lot of interesting markets in London that, yeah, you want to go shop.

当然，伦敦还有很多有意思的集市，当你你想去购物的时候。

神奇的博物馆 - SpeakingMax英语口语达人