您要查找的是不是：
- You will try, try in vain to repeat windfall gain. 得意不宜再往。
- We tried in vain to make him change his mind. 我們想使他改變主意，結果是白費心機。
- He tried in vain to catch the butterfly on the flower. 他白費力氣想抓住停在花上的蝴蝶。
- try in vain to talk sb. out of doing sth. 勸阻無效
- They tried in vain to open the locked door. 他們妄圖打開鎖著的門。
- She tried in vain to push through the crowd. 她怎麼也無法從人群中擠過去。
- They tried in vain to buy off the opposition. 他們試圖出錢使反對意見撤回，但沒有成功。
- They tried in vain to whip the school into shape. 他們企圖強制改革該學校，但沒有成功。
- He tried in vain to push through the crowd. 他怎麼也無法從人群中擠過。
- He tried in vain to write down the movement. 他妄圖寫文章詆毀這個運動，可是枉費心機。
- He tried in vain to bring his temper under control. 他徒勞地想控制自己的脾氣。
- He tried in vain to memorize the poem. 他怎麼背都沒辦法把那首詩背出來。
- They tried in vain to persuade her to go. 他們極力勸說她去，但枉費了一番口舌。
- I tried in vain to get Sue to come with us. 我想帶蘇一起來,但沒辦成。
- They tried in vain to frighten him with threats. 他們百般恫嚇，依然無效。
- They tried in vain to bend the rules of the game. 他們篡改比賽規則的企圖沒有成功。
- They tried in vain to fix up their differences. 他們試圖解決他們的矛盾,但沒有成功。
- He tried in vain to clear himself of the suspicion. 他未能消除人們對他的懷疑。
- He tried in vain to get into contact with the local branch. 他試圖與當地分部取得聯絡，但沒有成功。
- John tried in vain to gloss over his faults. 約翰極力想掩飾自己的缺點,但是沒有用。
