- 비말은 비오일성(기름입자가 아님)이므�? 오일 성분�?차단능력은 크게 중요하지 않다. So far in this lesson, you might have learned in regards to the Unusual principles that apply to 가지�?and 갖다 when grammatical rules are connected to them. One more phrase that follows an identical rule is 머무르