If you specify something, you give information about what is required or should happen in a certain situation.
例句
They specified a spacious entrance hall...他們專門指定要一個寬敞的大門廳。He has not specified what action he would like them to take.他尚未明確說明自己希望他們采取什么樣的行動。
VERB
具體說明（或規定）
If you specify what should happen or be done, you explain it in an exact and detailed way.
例句
Each recipe specifies the size of egg to be used...每種菜譜都具體規定了所用雞蛋的大小。One rule specifies that learner drivers must be supervised by adults...一條規則明確規定，見習駕駛員必須有成人的監督。