可数的,加s 补充: 可数的,查过词典了。复数保持不变,单复数同形。 Besides strawberries , fisetin is found in tomatoes , onions , oranges , apples , peaches , grapes , kiwifruit and persimmons . gingko biloba leaves , while rich in other flavonoids , do not contain fisetin. 除了草莓,西红柿、洋葱、橙子、苹果、桃、葡萄、猕猴桃和柿子也含有非瑟酮。银杏叶虽然富含类黄酮,但是却不含非瑟酮。