brilliancy n. 卓越,光輝；
delinquency n. 失職，罪行；
chancy a. 冒險(xiǎn)的；危險(xiǎn)的
例句：
He had no history of delinquency.
他沒有犯罪記錄。
Fancy! She's never been in a plane before.
真想不到！她竟然從未坐過飛機(jī)。
She got the highest score in fancy diving.
她在花式跳水中得了最高分。
You can't hear waves of such a high frequency.
你聽不到這么高頻率的聲波。