I'm currently learning Chinese, and I'd love to help with your English! Go ahead and message me or add me as a friend whenever :)

Downpour

One day, I was a witness of the heaviest downpour in Odessa. I was <s>at</s> in the street when <s>the things</s> it started. The drops were falling like bullets, completely* unlike our usual weather. Thankfully, I managed to get home <s>briskly</s> quickly* and without <s>histories</s> incident. Still, by the evening<s>,</s> there had been a complete flood all over the roads. <s>In fact, we</s> *We have bad roads in any weather, but after the rainfall they were genuinely destroyed. <s>The circulation</s> *Traffic ground to <s>the</s> a halt and the repair work<s>s</s> lasted for a week as* the following days, rain resumed every now and then. We don't normally have any natural disasters, yet when we do, fixing everything inevitably entails endless work. The victims of precarious weather are first and foremost the drivers. Not only can<s>'t</s> they not drive in <s>an</s> <s>appropriate way</s> the way they are used to*, cars can easily be damaged by falling trees or <s>something</s> other hazards*. Not to mention<s>, </s>casualties, which are, sadly, the feature of any natural catastrophe.

*Your original sentences were gramatical correct here, I combined them to help the ideas flow more clearly.

*"Briskly" would refer to the action or process of walking with a fast pace. "Quickly" works better here because it refers to the amount of time it took you to complete the action. (You can say you "walked" or "cleaned" briskly, but not that you "arrived" or "finished" briskly.)

*Your first sentence was fine gramatically, but in writing you generally shouldn't start a sentence with "But" or "And". Combining the two sentences sounds more natural.

*You could also say "The circulation of traffic". Circulation by itself is a little too vague to tell what you mean.

*Do you mean that repairs lasted for a week <em>because </em>it kept raining, or simply <em>while </em>itkept raining? If the former, I would say, "Traffic ground to a halt. Because it kept raining on and off in the following days, the repair work lasted for a week." If you meant the latter, I would say "Traffic ground to a halt, and the repair work lasted for a week while the rain continued on and off."

*"can't drive in an appropriate way" sounds like they are breaking rules.

*"or something" is great for conversation. "Or other hazards" is more specific, and better matches the descriptive tone of your paragraph.

Summer came

How do you imagine the sound of summer? I imagine the sound of crickets and cicadas.

Every year when summer comes, we can always hear them singing*. When I hear their sounds/song, I feel that summer is coming. Sounds make us feel the seasons. I know that the rainy season has already** ended, but I can hear the sound of the insects for the first time this year, and it feels like summer has already come! I like this feeling.

* "We can always hear... them/them singing/ their sounds". All of these options work, I chose "them singing" because I think it sounds nice & poetic. :) If you choose this option, the next phrase should say "When I hear their song..."

** You might want to replace "already" with "just", depending on what you want to say.

Just ended= it ended a short time ago (use this option if you're saying it's not soon enough for summer yet)

Already ended= it ended before now. (Use this option if you want to say it is too late for summer)