It's complicated.
原因很復雜。
走遍美國
It's Up to You(選校風云) ACT III
?? 句中詞匯解析
從本句中提取的重要詞匯
adj. 結構復雜的;混亂的，麻煩的;
v. 使復雜化( complicate的過去式);
?? com全部+plic重疊+ate表動詞+d=ed…的 → complicate全部重疊在一起=復雜+d=ed…的 →復雜的
"The instructions look very complicated."
這說明書看起來很難懂。
近義：difficult, intricate, involved, knotty, labyrinthine, muddled
反義：simple, uncomplicated, basic, cushy, doss, facile