Explanation:

Only; Only; Just now.

The best; Unique; Very good.

Conj。 But; Unless; However; After all.

Ex: I am the only girl in this internet company.

I am the only girl in this internet company.

Phrases:

Only child.

It's just not easy

One of a kind.

I have to.

Usage of only

When only is used as an adverb, it means "only, only, only". Only is also often used before noun phrases, especially before noun phrases beginning with quantifiers or numbers, which plays an emphasis role.

Only can be followed by an infinitive structure as an adverbial of result, which means "I didn't expect it, so it was like this", and is often used in unexpected and unfortunate situations. If the structure of "only+ infinitive" is long, you can use commas to separate it from the previous components.