I can correct your mistakes, but I'm not a native speaker. message me if you're interested. Thanks :)

I always hear defect and flaws in the context of machines, software, and maybe a governmental system. Fault is when you do something wrong: "that's not my fault, it's his". Weakness is the word that you can use for people and companies as well: "Our company can't delivery all over the world, that's one of our main weaknesses", "When you can't tell someone to their face why you're angry with them, that's a weakness". Hope that helps. By the way, I'm searching for an English partner. Please message me if you're interested.

http://www.dictionary.com/browse/seal-the-deal

Nowadays, along with the rising of women's rights around the world, an increasing number of women are likely to attend to college to further their studying. Besides, some assert that universities should receive an identical number of male and female students in each subject. Personally, I totally disagree with this opinion for a couple of reasons.

To begin with, the population of men and women are different in many countries and areas. In China, the number of men is about 20 million more than that of women, almost equal to the population of Australia, which means there are fewer female students than the number of the male.Therefore, Universities in China should reserve more seats for the male students rather than female.

Secondly, boys and girls have different hobbies. Although there are exceptions, generally, boys are more likely to be interested in science and girls on the other hand are more likely to be interested in art. For example, in our computer science and technology faculty, the number of boys are four times the girls. So, our university should reserve more seats for boys in our faculty.

Lastly, men and women have different natures which divide them to different fields naturally. Men are strong and rough while women are slender and tender which makes women be more acceptable by preschool kids. That is the reason why there are more women teachers in kindergarten than men teachers.

In conclusion, universities should decide the number of the different genders of students carefully for each single subject based on multi factors, such as the local population and the different natures of men and women.

That's not a generation difference, as a generation is "all of the people born and living at about the same time". So, you're the same age and the same generation. So, what you can say if someone asked: "is that your brother", you'd say: "no, he's my uncle, we're the same age though", and people will understand the meaning you're referring to. Hope this is helpful.

What are the fourth and fifth to last items?