Because Mandarin does not need a dummy subject like English it.
In English, we say:
But the it does not refer to anything real. It is just required by English grammar.
In Mandarin, you can simply say:
So 下雨 works fine by itself without any subject.
It can mean either of these in natural English:
Mandarin often leaves this slightly broad. The sentence naturally covers the general idea of disliking rainy conditions or the event of rain.
If you wanted to be more explicit, you could also say:
But 我讨厌下雨 is already completely natural.
Yes. Both are correct, but the strength is different.
讨厌 is much stronger than 不喜欢.
So if you just mildly dislike rainy weather, 不喜欢 may sound more natural. If you really cannot stand it, 讨厌 fits well.
Yes. 讨厌 can be used for both.
Examples:
However, when used about a person, the tone can be quite strong. In some contexts, 讨厌 can also mean annoying:
So learners should pay attention to context.
Because 下雨 is acting as the object of the verb 讨厌, and Mandarin often allows verbs or verb phrases to be objects directly.
So the structure is simply:
Mandarin does this quite naturally. English also does something similar:
Here, swimming and waiting are actions functioning as objects. Mandarin works similarly.
讨厌 is pronounced tǎoyàn.
Tone by tone:
A rough pronunciation guide:
So:
Be careful not to flatten the tones too much, because tones help distinguish words in Mandarin.
The normal expression is 下雨, not 雨下.
Mandarin commonly uses 下 + weather noun for things that fall from the sky:
So 下雨 is the fixed and natural form.
Yes, you can.
Here 很 adds emphasis, making the dislike feel stronger or more explicit.
But even without 很, 讨厌 is already strong, so the original sentence sounds complete and natural.
Yes, but it is a little different in feeling.
雨 is the noun rain.
下雨 is the event or action raining.
In everyday speech, 我讨厌下雨 often sounds more natural because people usually mean they dislike the weather situation, not the abstract noun by itself.