used to describe a person who seems to be incapable of doing something due to a lack of necessary resources or skills
Ex: He's never gonna get that prize.
for toffee
[구]
used to say that someone is extremely bad at doing something
Ex: I can't play chess for toffee, but I enjoy watching others play.
one-trick pony
[명사]
a person or thing that excels at doing only one thing

일회용 재주꾼, 단조로운 재주꾼
Ex: Don't be a one-trick pony in your job search; develop a range of skills to stand out.
used to say that one did not have much experience with something and therefore is not very good at it
Ex: She used to speak French fluently , but after not using it for years , sheout of practice.
having little knowledge or experience of a particular situation or activity
Ex: The recent college graduate may be smart, but he's yet wet behind the ears when it comes to practical work experience.
to no longer be able to do a certain activity as well as one did in the past
Ex: Once a brilliant athlete, he has lost his touch on the field, and his performance has suffered.
to lack knowledge or understanding of a particular concept or term
Ex: He didn’t even know the meaning of the word when I asked him to explain it.
an unscientific or inaccurate estimate or method
Ex: We need more than just finger in the air to make important decisions ; we need concrete evidence and analysis .
a versatile and adaptable individual who can handle a variety of tasks effectively
Ex: As a jack of all trades, master of none, she can juggle many tasks, but sometimes a specialist would do a better job.

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