手上

In a sentence

• 我手上有一件任务要完成。

  I have a task on my hands to complete.

  Here, '手上' refers to an abstract situation or responsibility that one is currently handling.

• 他在手上戴了一块手表。

  He is wearing a watch on his wrist.

  In this sentence, '手上' is used to refer to a literal, physical location on one's hand or wrist.

• 虽然困难很多，但我手上有一些重要的资源。

  Although there are many difficulties, I have some important resources on hand.

  Here, '手上' metaphorically indicates some assets or resources currently possessed or managed by the person.