翻譯成“他曾嘗試過在自己的臥室裏放置壹個更亮的燈，但是他犯了壹個錯誤。”
句子中關鍵詞語和詞組解釋如下：
once 英[w?ns] 美[w?ns]
adv. 壹旦; 曾經; 壹次，壹趟; 壹倍;
conj. 壹旦…就…; 壹經;
n. 壹次，壹回;
[例句]I met Wilma once, briefly
我曾經和威爾瑪有過短短的壹面之緣。
try to 英[trai tu:] 美[tra? tu]
[詞典] 設法;
[例句]One child shrinks away from me when I try to talk to him
當我試圖和壹個孩子說話時，他避開了我。
put in 英[put in] 美[p?t ?n]
[詞典] 做; （使） 在內; 在…上花費; 選舉…執政;
[例句]Wade was going to be paid a salary, instead of by the hour, whether he put inforty hours or not
會按月給韋德開工資，而不是按小時，無論他是否工作了40個小時。
brighter
adj. 聰明的( bright的比較級 ); 光亮的; 輝煌的; 前途光明的;
[例句]I was convinced that he was brighter than average.
我確信他比壹般人聰明。
make a mistake 英[meik ei mis?teik] 美[mek e m?stek]
[詞典] 犯錯誤; 弄錯;
[例句]I'd always played a defensive game, waiting for my opponent to make a mistake.
我總是采取防守型的打法，等待對手出錯。