quadrangle
n
1 plane figurewith four sides, esp a square or rectangle 四边形; (尤指)正方形, 长方形.
2 (fml 文) four-sided courtyard surrounded by large buildings, eg in an Oxford college (四周由大型建筑物围绕的)方形庭院(如於牛津大学学院的).
you have the choice of very expensive organically-grown vegetables or a steady diet of pesticides every time you think you're eating fresh salads and vegetables, or just having an innocent glass of water!