illumination

US /ɪˌluməˈneʃən/

UK /ɪˌlu:mɪˈneɪʃn/

B1 中級
n. (u.)不可數名詞照明
The room's illumination was provided by small lamps
n. (u.)不可數名詞啟發
The priest had an illumination about the gods

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雷射激光到底怎麼運作的(How lasers work (in theory))

01:42雷射激光到底怎麼運作的(How lasers work (in theory))