wrack one's mind and heart for
為......絞盡腦汁
eg. Bob wracked his mind and heart trying to remember where he left the book.
鮑勃絞盡腦汁試圖回憶起書丟在何處。

expire
vt. 終止；期滿
eg. Now her passport has expired.
現在她的護照已過期了。

on hte threshold of
在......快要開始的時候
eg. This country is on the threshold of prosperity.
這個國家即將進入繁榮之境。

extol
vt. 頌揚
eg. They extol the virtues of the peaceful life.
他們都稱贊寧靜的鄉村生活的種種的優點。

crucial
adj. 關鍵性的
eg. She broke into the conversation at a crucial moment.
她在關鍵時刻打斷了談話。

quixotic
adj. 不切實際的
eg. At worst his scruples must have been quixotic, not malicious.
從最壞的角度來說，他的疑慮肯定是出于一時沖動，而不含惡意。

paradoxical
adj. 矛盾的
eg. The result of such punishments is often paradoxical.
這樣懲罰的結果往往適得其反。

bear with
忍受
eg. We have to bear with his bad temper because he is a bit frustrated these days.
我們不得不容忍他的壞脾氣因為這些日子他有點灰心喪氣。

strike a balance between
在......之間尋求平衡
eg. This teacher tries to strike a balance between work and play.
老師試圖使學生們的學業和娛樂兩全其美。