I always wear my seat belt when I'm flying.
shoulder-strap n. 肩带，背带；肩章
enhance vt. 提高，增加，加强
The growth of a city often enhances the value of land close to it.
overpower vt. 压服，击败；(感情等)压倒，使无法忍受
Police overpowered the criminal and took him away.
The smell of the garbage overpowered me.
ergonomics n. 人类工程学，生物工程学；工效学
At last we came to the chapter on ergonomics.
Joy and sadness are experienced by people in all cultures around the world, but how can we tell when other people are happy or despondent? It turns out that the expression of many
"When people succeed, it is because of hard work, Luck has nothing to do with success." Do you agree or disagree with the quotation above? Use specific and examples to explain your