Write two expressions that take either a countable or uncountable noun.

Literal

Countable-noun [or-か] uncountable-noun [or-か] either [object-を] accompanying expressions [object-を] two write.

可算名詞 'countable noun' and 不可算名詞 'uncountable noun' — English grammar terminology. 従えている 'accompanying, taking (a dependent)' — 従える 'to have in tow.' 書け is the rough imperative of 書く — exam instruction style.