독해 문장 두 개 해석 부탁드려요

아래 두 문장 해석과 문장 구조 설명 부탁드립니다.
1. Even the most individualistic students are not likely to choose clothes that will make anyone mistake them for business people or housewives.
2. Closing a door, leaving it behind, means opening onto new ventures, new possibilities, new incentives.