1, issue refers to a problem that can be agreed, but needs to be solved through argument or discussion.

2. Problems refer to objective problems that are difficult to handle or understand.

Second, the usage is different.

1, issued

(noun)

1)issue basically means "problem" and "controversial point", which refers to the main events or opinions that are thought, said and written, and can be extended to "opinions" and "reasons for quarreling", generally only in singular form.

2)issue is generally used in formal occasions or literary works to explain the "result" and "ending" of things.

(5)

1)issue basically means "appear and survive as if born from the mother". It is usually translated as "promoting the publication and distribution of a book, etc.", especially "promoting the outflow, distribution, delivery and discharge of ...".

2)issue can be used as both a transitive verb and an intransitive verb. When used as a transitive verb, nouns and pronouns can be used as objects; It can also follow a double object, and its indirect object can be converted into the object of the preposition to, and the preposition cannot be used for；; It can also be followed by the preposition from, which means "gush out from"; Issue can also be followed by an as phrase as a compound object of complement.

2. Problems

(noun)

1) Solving "problems" often refers to the difficulties or problems that exist objectively and need to be solved, as well as the problems raised, and also refers to the problems in figures and facts, exercises or thinking questions.

2) Questions can be used in answers, and used with negative words to mean "no problem".

3)problem can sometimes be used as an attribute, meaning "difficult to handle, very problematic" and can modify things or people.

Third, the pronunciation is different.

The English pronunciation of 1 and issue is ['? u？ ]; The American pronunciation is ['? u？ ]。

The English pronunciation of 2.problem is ['pr? bl？ m]； The American pronunciation is ['prɑ? bl？ m].

Fourth, the word has different meanings.

1, issued

Being a noun means having a problem; Problems; Journal number; One-time issue amount; Problems; < law > children. As a verb, it means to publish; Announce; Officially released; Problems; Outflow.

2. Problems

There is something wrong with the meaning of nouns; Difficult problem; Exercise. Adjectives with suspicious meanings; It's hard to handle.