Arc spectrum
[化] 電弧光譜
?? 詞語組成解析
arc
[ɑ:k]
n. 綜合癥狀;弧（度）;天穹;電弧，弧光。;
vi. 形成拱狀物;循弧線行進;
abbr. American Red Cross. 美國紅十字會;
??? 情景例句
What shades of lipstick do you sell?
你們賣的口紅有什么顏色的？
I was so angry that I could hardly speak.
我氣得幾乎說不出話來。
An Indian came into the waiting room, and walked quickly to the doctor's door.
一個印度人走進候診室，快步朝醫生的門口走去。