"To achieve better results in Chinese" 或 "To improve one's Chinese language skills"。
来源：使用"achieve"表示取得成绩，使用"better"表示更好的成绩，使用"Chinese"表示语文。
例句1: "She wants to achieve better results in Chinese by studying more regularly."
中文翻译1: "她想通过更经常地学习来在语文方面取得更好的成绩。"
例句2: "He has been working hard to improve his Chinese language skills."
中文翻译2: "他一直在努力提高他的语文水平。"