Definisi : during ~s, during period, time, a. (given to learning) semasa belajar: students should pay attention during ~s, pelajar-pelajar mesti menumpukan perhatian semasa belajar; b. (given to teaching) semasa mengajar: teachers are not allowed to smoke during ~s, guru-guru tdk dibenarkan merokok semasa mengajar; 2. section dealing with a particular aspect, pelajaran: L~ 15 deals with the perfect tenses, pelajaran 15 adalah ttg kala sempurna; 3. st serving as a warning or an example, pengajaran: let that be a ~ to you!, biarlah itu menjadi pengajaran kpd kamu; his bitter experiences taught him many valuable ~s, pengalamannya yg pahit banyak memberinya pengajaran yg berguna. (Kamus Inggeris-Melayu Dewan)