No parents can duck out of his duty to their children.

父母应该对其子女的教育负有责任。

Harry even had to cover his face duck out of view to hide his uncontrolled guffaws.

哈里王子更是一发不可收拾,捂住脸,狂笑起来.

Harry even had to cover his face and duck out of view to hide his uncontrolled guffaws.

哈里王子更是一发不可收拾，捂住脸，狂笑起来。后面还有，太长，略掉了。

Respectably dressed pot smokers no longer duck out of public sight to pass around a joint.

衣冠楚楚的大麻烟客出入烟馆不再藏头露尾、怕人发现.

Respectably dressed pot smokers no longer bother to duck out of public sight to pass around a joint.

衣冠楚楚的大麻烟客出入烟馆不再藏头露尾、怕人发现。

The iPhone 4 was launched on a Friday which gives customers an excuse to duck out of work early at the end of the week to go line up.

iPhone 4在周五上市，这给消费者一个理由去逃掉周末的工作而去排队。