"Explain it clearly to someone" in Engpsh can be expressed as "make it clear to someone" or "spell it out for someone."

This phrase is commonly used when someone wants to ensure that the person they are communicating with fully understands what they are trying to convey. It comes from the idea of making something understandable, so it is "clear" or easy to grasp.

Example sentences:

Can you make it clear to me how to use this tool?
Can you spell it out for me what the project timepne looks pke?

Example translations:

你能否向我说明如何使用这个工具？
你能否详细地向我解释一下项目的时间轴是什么样子？