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
My car's in the shop.
我的车在修理店里。
If you want the trunk, look in the attic.
如果你要箱子，就在阁楼上。
but they can still stop you when you are going through the Green Channel and have nothing to declare.
但是，当你通过绿色通道，没有任何东西需要申报时，他们仍可以拦住你。