Precancelling
（收寄大宗邮件或邮包时）预先盖销（邮票）( precancel的现在分词 )
🗣️ 情景例句
Keep the change.
别找零头了。
There must be someone behind the door.
门后必然有人在。
The bridge is so long that the shape of the earth had to be taken into account by its designer.
由于桥身太长，设计者不得不考虑了地表的形状。