concoct /k?n?k?kt/ v. 调制；捏造
教别人怎么使用面膜
teach somebody how to use a mask
A：She is a make-up expert.
她是一个化妆师。
B：No wonder she often teaches somebody how to use a mask and how to apply powder.
难怪她经常教别人怎么使用面膜、怎么抹粉呢。
expert /?eksp??t/ n. 专家，行家
敷／涂面膜 apply the mask
A：Your skin looks much better. What's your secret?
你的皮肤看起来好多了。你有什么秘诀吗？
B：Ah, I always apply masks these days.
哈，这些天我一直敷面膜。
secret /?si?kr?t/ n. 秘诀；窍门；秘密
洗掉面膜 wash the mask off