School jacket 當然是對的, 但更準確的寫法是 school blazer.
Jacket 和 Blazer都是上衣/外套, 但jacket 泛指一切外衣, 而blazer 特別指有校徽/隊徽的制服式外套.
參考: 牛津字典--blazer 條目
A jacket, not worn with matching trousers, often showing the colours or badge of a club, school, team, etc. 常帶有俱樂部, 學校, 運動隊等顏色或徽章的夾克.
2007-11-14 16:28:45 補充:
school jacket / school blazer 就對了, 不用加school uniform jacket, 不合乎英語習慣