请输入您要查询的英文单词：
单词
ˌheavy-ˈduty
释义
ˌheavy-ˈduty
ADJ
1
strong and not easily damaged 结实的；耐用的
heavy-duty plastic
重型塑料
heavy-duty diesel engines
重型柴油引擎
2
MAINLY AMERICAN
informal
very serious 非常严肃的；需认真对待的
a heavy-duty conversation
非常严肃的谈话