Derivative file
[計] 導數文件
?? 詞語組成解析
derivative
[di'riv?tiv]
n. [數]導數，微商;[化] 衍生物，派生物;[語]派生詞;
adj. 衍生的;導出的;拷貝的;
file
[fa?l]
vt. 提出（離婚訴訟或其他訟案）;把…歸檔;用銼銼;發稿，寄給報社;
vi. 發送（報道給報社）;排成一行行走;提出申請;
n. 文件（夾）;檔案;縱列;銼刀;
fil線+e → 用線穿成的→ 檔案
??? 情景例句
Oh, it's so exciting, isn't it, Richard?
噢 ，這太令人興奮了 ，是不是 ，Richard？
Wisdom is to the mind what health is to the body.
知識之于心靈，猶如健康之于身體。
George took off his jacket, rolled up his sleeves and pushed is right arm through the drain cover.
喬治脫掉外套，卷起袖子，將右胳膊伸進了陰溝蓋。