Arc of rotation
[机] 转动弧
🧩 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];
🗣️ 情景例句
And I didn't sleep well, Daddy told me.
而我总是睡不好。爸爸告诉我的。
She envied John for this success.
她娘娘约翰的成功。
Right from the start there was trouble with the Hubble.
从最开始哈勃望远镜就有问题。