So I want to make it very clear to you, I as a teacher and I as a friend and as a native speaker of English have never once felt annoyed or frustrated with somebody asking me to repeat something.
Conversely, all night study sessions do not work, as our ability to process information is hindered by our restlessness, and the information overload is simply overbearing.
The sun might make you ruddier but racing down a " gutter" on a surface slick as " butter" even if you have to " crash" could help you make a " splash" .
Professor Dixon explains that the original meaning of the word sad was 'full' or fed up, a phrase which today means being unhappy, bored or tired of something which has been going on a long time.