breakdown truck
noun🔊/ˈbreɪkdaʊn trʌk/
🔊/ˈbreɪkdaʊn trʌk/
(British English) (also tow truck North American English, British English)
a truck that is used for taking cars away to be repaired when they have had a breakdown （把故障车辆送去修理的）救险车 
