1. Before you use a makeup tester, clean the surface of the makeup tester with a tissue or a tissue dipped in alcohol because it may be covered with germs.2. Here's a list of free samples of shampoo, conditioner, and styling products that you can request from your computer and receive in your mailbox.
 tester sampletester 指在美容店試用的美容用品, 只能在那裡試, 不能帶走; sample 可廣泛用在任何可帶走或消耗的試用品, 如食物
I tried to explain how the software works to my dad, but he is slow on he uptake.