firstly的意思|示意

Firstly, let's talk about the usage of the English word \"firstly.\" Primarily, \"firstly\" is an adverb that is typically used to introduce a series of items, much like \"first\" or \"first of all,\" though it is more often seen in formal writing. It can also be used to indicate a first time event or occurrence.

For example, you could say, \"Firstly, I will explain the difference between these two terms.\" That would indicate that you are about to explain the difference and that it is the first item in a list of topics.

You can also use \"firstly\" to talk about something that is happening for the first time. \"Firstly, this is the first time I have ever been to France.\" Here, you are indicating that it is the first time you have gone to France.

Finally, you could use \"firstly\" as an adjective to describe something that is the primary or first in importance. \"This is the firstly important thing that must be done in order to complete the project.\" Here, you are indicating that the first action is the most important one.

In conclusion, \"firstly\" is an adverb that is used to introduce the first item in a list or series or the first time an event is occurring. It can also be used as an adjective to indicate the most primary or important item.