in merry pin的用法和样例：
- He appears to be in merry pin.
- Follow me in merry measure. Fa-la-la, la-la-la, la-la-la.
- "We are hobbits from Buckland, and we have a fancy to travel and to stay at the inn here," put in Merry.
- When the firework blows up in Merry and Pippin's hands the high-pitched scream is actually Billy Boyd, who did not know the firework was going to explode.
- The wind was whispering in the trees.