Circumscribing
v. 在…周围划线( circumscribe的现在分词 ); 划定…范围; 限制; 限定
🗣️ 情景例句
I have a question.
我有一个问题。
The path to glory is always rugged.
通向光荣的道路常常是坎坷不平的。
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）