"The thunder and the cloud"
Translation:Sấm sét và mây
Because they haven't been introduced. Sorry about that.
Besides, classifiers for some weather phenomenons are a bit confusing so I may have to take a look at this set of classifiers later. (e.g. I found no clue in grammar book that says thunder in Vietnamese (sấm or sấm sét) require a classifier or not, but "cơn" is, arguably, the closest classifier for describing an ongoing phenomenon like rain (cơn mưa), thunderstorm (cơn giông), thunder (cơn sấm).)
Hi, please feel free to propose new interpretation of Vietnamese grammar for discussing. However, without a credible source, we can hardly come to an agreement regarding the use of Vietnamese language.
In this case, I argue that thunder (sấm) and cloud (mây) are uncountable but đám mây and cơn sấm are countable. cơn sấm is a bit rare to be seen in use but evidently đám mây is common.
On your suggestion, I agree "Sấm và mây" should be an acceptable translation.