swash letter

例句：

1. 1.The swash letter on the envelope is a clue to its destination.
   信封上的滑行字母是其目的地的线索。
2. 2.The swash letter on the envelope is a clue to its destination.
   信封上的滑行字母是其目的地的线索。
3. 3.The swash letter on the envelope is a clue to its destination.
   信封上的滑行字母是其目的地的线索。