Sdr
abbr. 国际货币基金组织的特别提款权（special drawing rights）；计数据记录器（Statistical Data Recorder）；系统定义记录（System Definition Record）
🗣️ 情景例句
If it ain't broke, don't fix it.
东西还没坏，就别急去修它。
Put not your hand between the bark and the tree.
少管闲事。
Clusters of tin insects called aphids were to be found on the underside of the leaves.
结果在树叶背面找到成串的叫作蚜虫小虫子。