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Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
Scheduled time when a professor is available to meet with students.
Required to be finished or submitted by a specific time.
A friendly way to say goodbye, wishing someone well.
To ensure that something happens or is true.
An additional period of time allowed to complete a task or submit an assignment after the original deadline.
A formal document or certificate issued by a medical professional that confirms a patient's illness or medical condition.