A：I've never used this kind of eyebrow pencil. It doesn't have a cap.
我从来没有用过这种眉笔。它没有笔帽。
B：It's a new product. When you use it, just twist the upper end of the eyebrow pencil.
它是新产品。当你用的时候，你只需拧眉笔的上端即可。
upper /??p?(r)/ adj. 上层的，上方的
把笔芯装入眉笔 put a refill in the eyebrow pencil
A：Somehow this eyebrow pencil looks strange.
不知怎么回事，这个眉笔看起来怪怪的。
B：It's an automatic eyebrow pencil. You should put a refill in the eyebrow pencil before using it.
这是自动眉笔。你使用之前要把笔芯装入眉笔。