This morning when I woke up I noticed that it had been raining. My wife told me that it had been raining through the night and she couldn't believe me when I told her that I hadn't heard anything. However, I couldn't tell her that she was lying to me since the ground was wet. So needless to say what had happened. Despite the fact that it rained all night long, the sun was shining brightly and birds flew and sang around announcing that that would be a beautiful day.

بدأت تعلم اللغة العربية منذ زمان
ولكن الاهتمام يأتي ويذهب.
بدأت أتعلم باستمرار مرة أخرى منذ عشرة شهور  ولكن يمكنني أن أتكلم قليلا فقط
أحتاج إلى بناء المفردات الخاصة بي ولا تخافوا من ارتكاب الأخطاء.

It means he already hates dogs a lot, which means the hate he has for kids has to be particularly high. Example: He's more sporty than his sister, which is saying something. The sentence implies that his sister is already very sporty, so him being more sporty than his sister is a particularly noteworthy achievement. You could also say: He's better than his sister at Math, but that's not really saying much. This indicates that his sister is bad at Math, so him being better than her is not "saying much" - in other words, not a particularly impressive achievement, as most people are also better than her.