Sliding scale
计算尺, 按比例增减
📖 牛津释义
sliding scale
scale that relates two things, so that they each increase or decrease together 滑动费率, 滑动折算制（相关的两项目相应增减制）
Fees are calculated on a sliding scale according to income, ie Richer people pay more. 这种费用是根据收入高低滑动折算的（富人多付钱）
🧩 词语组成解析
a. 滑行的, 变化的\\n[机] 滑动
scale
[skel]
n. 规模;比例（尺）;鱼鳞;级别;
vt. 测量;攀登;刮去…的鳞片;
vi. 衡量;攀登;（鳞屑）脱落;生水垢;
scale(climb)→登；爬越；音阶；比例尺；规模；尺；尺上的刻度
🗣️ 情景例句
I take after my mother's family.
我像我母亲家的人。
To step on
踩到
Alfred the Great acted his own spy,
阿尔弗雷德大帝曾亲自充当间谍。