droplock floating rate note

例句：

1. 1. The droplock on the door keeps it from opening too easily.
   门上的锁扣防止门轻易打开。
2. 2. The droplock on the window is a security feature.
   窗户上的滴水锁是一种安全特性。
3. 3. The droplock on the door is easy to use and secures the door tightly.
   门上的滴水锁使用方便且能牢固地锁定门。