Fluorophor
熒光體
??? 情景例句
Things are never as bad as they seem.
事情往往不像看上去的那么糟。
Have you marketed your product yet?
你們的產(chǎn)品尚未推出市場嗎？
He said that there was now no village.
他說那村子已經(jīng)沒有了。