役に立つ馬鹿の英語

to put something to some use

effectiveness of matter (be useful)

to begin to be useful

the state of being useful

to be useful―of use―serviceable―of service―good for something―to come in useful―serve one's purpose―prove of service―render service―stand one in stead

to prove useful―prove of service―stand one in stead

the degree of usefulness of a thing or a person

to serve

be of service

to drudge

a means of serving

a useful way of using something

to answer the purpose―serve one's turn―（形容詞をもって言い表せば）―to be useful―serviceable―helpful―available―good for something.

a thing that is useful

be of use to, be useful to

to put anything in requisition―call anything into requisition―（ご用立ての意味なら）―place anything at one's service―place anything at one's disposal

potentially useful

having a useful function

the quality of being useful and convenient

useful teaching materials

effectiveness of matter (be practical, advantageous or helpful

of something, to be of benefit

in a helpful manner

to be useful―of use―serviceable―of service―good for something

the state of being well-suited for a role

used until no longer useful