improve the occasion/opportunity 利用機會;趁機說教

on the first occasion 一有機會
if the occasion arises, if the occasion should arise, should the occasion arise 必要的時候
go about one's lawful occasions 從事本務
for the occasion 臨時
give occasion to... 引起,使發生
on occasion, upon occasion, occasionally 不時地,有時
on occasions 好幾次,履次
rise to the occasion 善於臨機應變;善處難局
improve oneself in 求進步,求上進
improve away 借改良除去;將...弄巧成拙
This can hardly be improved upon/on. 這幾乎沒有改良的餘地。
The student's conduct occasioned us much anxiety. 那個學生的行為使我們非常憂慮。
see eye to eye with somebody 以眼看眼,表示完全同意某人
a feather in one's cap 榮譽;勝利;驕傲的事

(直譯:印第安人在戰場上每殺死一個白人,就在頭上插一根羽毛)

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 be up to one's ears in debt 深陷於債務 (直譯:債務堆到耳朵的高度)
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