eg The company's silence on the subject has been taken as an admission of guilt. eg He's completely inflexible on the subject. eg Women were less equivocal than men on the subject of fidelity in marriage.
Why does the writer of the following use AT instead of ON?:
-I don't know how far it would be possible for you to do much good at the subject, but I'm fairy certain that the amount of economics that you would have to read, would not be more than you could easily do.
Top answer
To be good at something means that you have the talent for it.
— AlpheccaStars
To be good at something means that you have the talent for it.
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