expert in用法

You are the one in charge or the one who knows best. Said as an indication that one will defer to...

A much touted theory suggests that practising any skill for 10000 hours is sufficient to make you...

We need to bring in an expert to deal with this problem. He's an expert on 15th-century Italian a...

How do you define expertise? Scientists have debunked that 10000 hours of practice does not make ...

【TED-Ed】你如何知道誰值得信賴? (How do you know whom to trust? - Ram Neta). 4K. 中 ...