✔ 最佳答案
Read as widely as you can, and look up a new word only when you think you need to.
Learning new words by rote is hardly ever any use: if you don't have a need for a word, you won't use it - and you will forget it in next to no time.
But if you make sure that you read at least some fiction, some non-fiction, some contemporary writing, and some classical writing every week - you will find that your vocabulary grows naturally, and you will find your ability to think growing at the same rate as your vocabulary.
Many of my favourite words (accrete, empirical, concatenate, diastasis, register, metic) I never needed until I understood the ideas that belong to them.
If you expand your mind, your vocabulary will expand to fit. If you learn words without discovering the new ways of thinking they bring with them, you are learning to no purpose.