be (right) under your nose idiom
就在（某人）眼前
to be in a place that you can clearly see
I spent all morning looking for the book, and it was right under my nose the whole time. 我花了很长时间找这本书，原来它一直就在我眼皮底下呢。
She shoved the letter under her boss's nose (= made certain he saw it). 她把信推到老板面前。