Hi @tony.ycy.program, are you just sharing how to do something or do you have a question?
Your blocks aren’t going to work because the “sentences” property is a list (known as a JSON array). You need to get the first list item of “sentences” and then get the “trans” property from that.
When you see [1], that means there is a single array item. That item doesn’t have a property name “0”… that’s just a list index. It counts up from 0… 1… 2… etc.
A shortcut is to get the property name “sentences[1].trans” from the JSON object. See this.