ONE PHRASE, IN CONTEXT
not a big deal
不是什么大事；没什么大不了
GET TO KNOW THE MEANING
读懂它，也学会这样说。
01不是什么大事；没什么大不了
IN A SENTENCE
I forgot to bring the serving spoons, but the host said it was not a big deal and found some extras.
我忘了带公用餐勺，但主人说这不是什么大事，又找了几把备用的。