Wèi / le / yíng / dé / bǐ / sài / tā / fèi / jìn / xīn / jī / yán / jiū / duì / shǒu / de / cè / lüè

为了赢得比赛，她费尽心机研究对手的策略。

To win the competition, she racked her brains studying her opponent's strategy.