This is the 5493rd most frequent Chinese word.
先為
"先為" means "to act first" or "to take the initiative."
Here, '先為' is used to introduce a sequential action meaning 'first performing an action of'.
首先,我先為大家讲解这部分内容。
Firstly, I will explain this part to everyone.
The phrase '先為' indicates the subject's prioritization to undertake a specific action at the moment.
请让我先為自己辩解一下。
Please let me first defend myself.
In this sentence, '先為' is used to express an action conducted prior to another related activity.