what's the difference between "fight against" and "fight with"? what's the difference between "fight against" and "fight with"?

lighter tea or light tea?

What does " Potential issue is distance mean?" i've got a query,if i asked my boss today if i could hire certain interviewer, then he replied with "potential issue is the distance." what does this mean?

Coke, coke or cola. Which one refers all of the soft drink similar to Coca-Cola? Coke, coke or cola. Which one refers all of the soft drink similar to Coca-Cola?

Peking roast duck or Peking roasted duck? Peking roast duck or Peking roasted duck? Do people use roasted as an attributive?

what does solid mean here? The United States is traditionally famous for its solid and unchanging diet, chiefly made up of meat and potatoes. what does solid mean here?

what does " Na ja, so naturlich ist das doch nicht" mean? what does " Na ja, so naturlich ist das doch nicht" mean?

"there be" in Deutsch is "sein"? Is the sentence"In Suddeutschland sind viele Berge." the same with " there are many mountains in South German"? in English we have "there be..." In Deutsch do we use the "sein" sentence to replace "there be " in English? I remember that sein also means exist in philosophy of German. Am i right?

Deutsch question：what does the sentence" wer macht was?" mean?