可數與不可數

Other nouns that can be either countable or uncountable are:

achievement behaviour control development experience

industry policy power society teaching theory

Remember the uncountable form will be required when the

phrase is referring to the general concept or attribute and not describing specific

kinds or actual instances.

Two nouns that seem to attract this error are ‘competition’ and ‘communication’

The plural form has been used in this first example when the meaning only relates

to ‘competition’ in general.

In this framework, competitions occurring within the industry are targeted

In this framework, competition occurring within the industry is targeted.

Communication is not often used in a singular countable sense (‘a communication’). As a plural it can be used to refer to infrastructure or the field as shown here.

The next section gives an overview of the signalling and communications they

have developed on site.

They studied computer networks and communications at university.