相信藉由自己的努力，加上在當地環境相處久了，一定能克服語言的障礙，並且

相信藉由自己的努力，加上在當地環境相處久了，一定能克服語言的障礙，並且較能適應當地的生活結交到更多的朋友。

結果 (英文) 1:

I believe by their own efforts, coupled with the local environment live a long time, will overcome the language barrier, and better able to adapt to local life to make more friends.

結果 (英文) 2:

I believe that through their own efforts, coupled with the local environment for a long time, will be able to overcome the language barriers, and more able to adapt to local life to make more friends.

結果 (英文) 3:

I believe that with my own efforts and long time in the local environment, I can overcome the language barrier and make more friends than I can adapt to the local life.