The sample size of a treatment is the number of people who received that treatment.
一个处理水平的样本量为接受这个处理水平来访者的数量。
I received the sample size of this product and have used it for about three weeks now. It has improved everything about my skin, from diminishing to fading scars and dark spots!
我收到的是小样，已经试用了三个星期，它从各个方面都提高了我的皮肤，大大减淡了痘痘和暗斑！
I received the sample size of this product and have used it for about three weeks now. It has improved everything about my skin, from diminishing to fading scars and dark spots!
我收到的是小样，已经试用了三个星期，它从各个方面都提高了我的皮肤，大大减淡了痘痘和暗斑！
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