Propeller arc
[机] 螺旋桨效应电弧
🧩 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;
🗣️ 情景例句
We have a wide connection in U.S.A.
我们在美国各地有广泛业务关系。
He who is ashamed of asking is ashamed of learning.
耻于问者耻于学。
Round about, piles of limestone glistened in all the colours of the rainbow.
周围是一堆堆石灰石，像彩虹一样闪闪发光。