Sliding scale duty
[经] 滑动税率
🧩 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
Can I help you?
我可以帮上忙吗？
Eat one's cake and have it.
又要马儿好，又要马儿不吃草。
I want to buy some food for supper this evening.
我想买点晚饭用的东西。