B. [부정관사 vs. 정관사] - 11형
'a friend' vs. 'the friend'("This is <a friend who is a Hollywood producer.>" vs. "This is <the N friend that I've talked about before.>"의 쌍을 포함하는 예문 본문을 2개 이상 찾아 BO 용법 확인하기. [one of the Ns(흔함/막연한 하나: '또 있다') vs. the only(유일함/정해진 하나: '이것뿐')].
[예문 1] Slice Against the Grain at an Angle
One of the easiest mistakes to make when cooking a steak is cutting with the grain, instead of against it. You can identify the grain in beef the same way you would in wood, by noting which direction the connective tissue is traveling. When your beef is cooked, run your knife perpendicular to the grain of the steak, or else you'll have a piece of meat that's tougher than jerky.