Unstable arc
[化] 不稳定电弧
🧩 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
Aren't you a little scared?
难道你不会感到有点紧张吗？
Before gold, even kings take off their hats.
有钱能使鬼推磨。
The noise had been so faint that no one though that the ship had been damaged.
由于这个声音非常轻，没人会想到船身已遭损坏。