Worddi akhirMeaningat the end ofPart of speechprepositionPronunciationCourseHardcore IndonesianLessonLesson 64Usages of di akhirDi akhir seminar, pembicara mengingatkan bahwa terlalu banyak kafein bisa membuat kita sulit tidur meskipun lelah.At the end of the seminar, the speaker reminded us that too much caffeine can make it hard to sleep even when you are tired.