Final answer:
The subject of this question is English, and it is asking about the meaning of the phrase 'all year round.' This idiomatic expression describes something that happens or exists continuously throughout the entire year.
Step-by-step explanation:
The subject of this question is English because it is asking about the meaning of a phrase in the English language.
The phrase 'all year round' is an idiomatic expression used to describe something that happens or exists continuously throughout the entire year. It is often used to express a preference for a particular weather condition, as in the example given in the question.
For example, if someone says 'I wish it was sunny all year round,' they are expressing a desire for sunny weather throughout the entire year and not just for a limited period of time.