Arc cutting
[化] 电弧切割
🧩 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;
cutting
[['kʌtiŋ]]
n. 切断, 切下, 路堑\\n[化] 切屑
🗣️ 情景例句
Who are you rooming with?
你和谁同屋？
We're broadcasting from London.
我们从伦敦播放。
It is not a simple competition for a fixed amount of food determined by the physical environment,
它已不是为了争得物质环境所决定的有限食物而进行的简单竞争了，