请按分类要求写英语单词答:常见疾病:fever, ulcer, headache, indigestion, flu, stomachache形状尺码:round, oval-shaped, square, triangle, 颜色:red, orange, yellow, green, blue, violet, purple, brown, balck, white, gray, pink, 月份:January, February, March, April, May, June, July, August, September, October, ...