To be there or to be square

In fact,I can only use two languages so far,that is,Chinese and English.Chinse is my native language, while English is my first foreign languange.I don't think I can use another foreign language,because I am engaged in using these two.For nearly a quarter century,I am busy using the two languages,especially English, for I major in English, doing English teaching and translating it into Chinse or likewise.Huh,I ,sometimes, try to learn some other foreign languages, but the perseverence failed.so up to now, I can only use the two languages.