heavy duty word
heavy是什么意思：
adj. 沉的；超出一般的；辛苦的；厚的；繁忙的；耗费...的.；危险的；沉闷的；严厉的
n. 保镖；苦啤酒
a truck; a heavy duty truck
载重汽车
Light Burdens far heavy
远途无轻担
An elephant has a heavy build.
大象躯体庞大。
duty是什么意思：
n. 责任；义务；职责；职务；税
duty to rear; duty to provide support
抚养义务
a truck; a heavy duty truck
载重汽车
The path of duty is the path of safety
尽职的路是安全的路
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