Confide: 透露,吐露,傾訴
She confided her troubles to a friend.
她向朋友傾吐了內心的煩惱.
He confided (to me) that he had applied for another job.
他(向我)吐露說他已申請了另一份工作.

a matter of focus:重心的問題

reference point:參照點

home in on sth: to aim exactly at an object or place and move directly to it 朝向,移向,導向(目標)
the missle homed in on the target.
導彈正向目標飛去.

Fiddle with sth: to move part of a machine in order to make it work, without knowing exactly what you should do 亂動,篡改

Recur: 再發生; 復發:
a recurring problem, error, illness
反復出現的問題, 錯誤, 疾病
The symptoms tend to recur.
這種癥狀有可能復發.
This theme recurs constantly throughout the opera.
這一主旋律在該歌劇中不斷出現.
來源:可可英語 http://www.ccdyzl.cn/Article/200909/83785.shtml