Arc of action
[机] 作用弧
🧩 词语组成解析
arc
[ɑ:k]
n. 综合症状;弧（度）;天穹;电弧，弧光。;
vi. 形成拱状物;循弧线行进;
abbr. American Red Cross. 美国红十字会;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
action
['ækʃən]
n. 行动，活动;功能，作用;手段;[法]诉讼;
🗣️ 情景例句
A journey of a thousand miles begins with a single step.
千里之行，始于足下。
Many hands make light work.
人多好做活。
When she reached home, she had a short rest and a glass of water.
到家后她休息了一阵子，喝了一杯水。