性能: function, performance...
赶往: to hurry to (somewhere)...
电子邮件: email...
富足: rich, plentiful...
涝: flooded...
领域: domain, sphere, field, territory, area...
课堂: classroom...
爬山: to climb a mountain, to mountaineer, hiking, mountaineering...
笨蛋: fool, idiot...
虎: tiger...