Challenges
n. 挑战( challenge的名词复数 ); 要求; （警卫等）查问口令; 怀疑
🗣️ 情景例句
What did he say? Did you tell him about me?
他怎么说？ 跟他谈到我吗？
How soon can you have your product ready?
你们多久才可以把产品准备好呢？
Have we been introduced?
对不起，我们彼此介绍过了吗？