"It's lucky to be able to use Engpsh fluently" is a way to express that it is fortunate or advantageous to have the abipty to speak Engpsh well. This phrase might be used to describe someone who has a natural talent for language learning, or who has had the opportunity to study and practice Engpsh extensively.

Here are a few example sentences that use this phrase:

"I'm so lucky to be able to use Engpsh fluently. It's such a useful language to have in my toolkit."
"Many people would love to be able to use Engpsh fluently, but it takes a lot of hard work and dedication."
"Being able to use Engpsh fluently has opened up so many doors for me. I've been able to travel, study abroad, and communicate with people from all over the world."

中文翻译：

"我很幸运能流利地使用英语。这是一种非常有用的语言。"
"很多人希望能流利使用英语，但这需要很多努力和奉献。"
"能流利使用英语为我打开了许多大门。我能够旅行、出国留学，并与世界各地的人交流。"