Vocabulary is the basis of the TOEFL test, especially the reading part. Generally speaking, the larger the vocabulary, the greater the chance of success in the exam. In the short term, some effective memory methods can be used to quickly master the TOEFL vocabulary. In the long term, the best way to expand your vocabulary is to spend a lot of time reading and practicing listening, and make full use of reference books such as dictionaries and thesauruses.