Postmarking
vt. 在（郵件）上蓋…的郵戳\\nn. 郵戳
??? 情景例句
You're not dressed right for this job.
你的著裝跟你的工作不相稱。
I didn't notice you were wearing your new hat.
我沒注意你戴了新帽子。
and near its lower reaches there is a long tailing-off which is almost certainly the result of material transported out to deep water after being eroded from the continental masses.
在這個地帶的低處是很長的一段尾沙地段，基本上可以斷定這個地段是大陸塊體上侵蝕下來的物質被水沖到深水處形成的。