on-the-job
US /ˌɑn ðə ˈdʒɑb/
UK /ˌɑn ðə ˈdʒɑb/

1.
semasa bekerja, di tempat kerja
while working; during the course of one's employment
:
•
He received on-the-job training for the new software.
Dia menerima latihan semasa bekerja untuk perisian baharu itu.
•
Many skills are best learned on-the-job.
Banyak kemahiran paling baik dipelajari semasa bekerja.