ONE PHRASE, IN CONTEXT
inside out
了如指掌;彻底了解

GET TO KNOW THE MEANING
读懂它,也学会这样说。
01了如指掌;彻底了解
IN A SENTENCE
After three years at the shop, Maya knows the inventory system inside out.
在这家店工作三年后,玛雅对库存系统了如指掌。
You don't need to know the tool like maybe inside out to write the queries yourself, but you can just more talk to it or also automate away little stupid problems like generating test data.
你不需要像了如指掌那样精通这个工具才能自己编写查询,但你可以更多地与它对话,或者把生成测试数据这类小而无谓的问题自动化掉。
