Dear my friend,
I am here writing to your to express my gratitude to you for congratulation.
You mentioned how to improve the translation ability. Now I would like to offer you some suggestions.
The most important factor to be considered is that you must grasp a large
bank of vocabulary, which is the foundation for translation. Secondly, you can try to practice translation everyday. After your translation, you can compare your translation with the given answer. Last but not the least, you must pay very close attention to the difference between the two languages. Differences between laguges must be considered when you are translating.
I am looking forward to meeting you in the near future. Then, we can have a talk face to face. I sincerely hope that my suggestions can be constructive to you.
Truly yours