| 单词 | heavy-duty | 
| 释义 | heavy-dutyˌheavy-ˈduty adjective [no comparative] 1designed to be strong enough for hard work or a lot of use:  heavy-duty plastic garbage bags2informal said when you want to emphasize how complicated, serious, etc. someone or something is:  heavy-duty maintenance a heavy-duty conversation  | 
	
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