about the structure "such things as something" Such variations in size, shape, chemistry, conduction speed, excitation threshold, and the like as had been demonstrated in nerve cells remained negligible in significance for any possible correlation with the manifold dimensions of mental experience. how to understand this structure in the sentence?? thanks

what does "a week of fourteen-hour days "mean?

Someone I know Yu is my best friend at school.I've known her since two years ago.We have the same friend and often go out together,so we saw a lot of each other. She studies new media in the university now,and she is one of the best students in our class.She told me that she wanted to be a designer in the future.What a beautiful dream! She likes wearing dark clothes,and black shoes.When I first met her,I thought she was a strange girl ,and I didn't like her much! But now I feel really lucky to have such a great friend.We always talk about everything about ourselves,and I like going to the library with her.I know that she will always be there to help if I need her.And I'll be there to help her,too,of course.

hi! What are real friends,you ask?

I think a real friend should be honest,but sometimes,I feel disappointed.What about you?