The main jobs of the adaptive immune system are:
ð ə WORD_BOUNDARY m eɪ n WORD_BOUNDARY d̠ʒ ɑ b z WORD_BOUNDARY ʌ v ð ɪ WORD_BOUNDARY ʌ d æ p t ɪ v WORD_BOUNDARY ɪ m j uː n WORD_BOUNDARY s ɪ s t ə m WORD_BOUNDARY ɑ ɹ WORD_BOUNDARY