There are, however, worldwide ethical codes that explicitly state that animal research and testing should come before human testing and research.

然而，世界范围内的道德准则明确规定，究和试验应先于人类试验和究。

An inquiry began, and it was decided that while Morgan had breached an ethical code of conduct, he could keep his job.

领导对此展开了调查，并出决定：虽然摩根违背了道德行为规范，但不会被开除。

They are driverless, they don't have these ethical and moral codes in them to decide about whether I should hit a human or I should hit the trees.

无人驾驶的，没有这些伦理和道德准则来决定我应该撞人还应该撞树。

" Duty" can also refer to something that you are required to do either by law or by some sort of moral or ethical code or set of rules.

“职责”也可以指法律或某种道德或伦理准则或规则要求您做的事情。

There are, however, worldwide ethical codes that explicitly state that animal research and testing should come before human testing and research and you know these are codified in the Nuremberg code and the declaration of Helsinki.

然而，世界各地的伦理法规都明确规定，究和试验应该先于人类试验和究，你知道，这些都被编入纽伦堡法典和赫尔辛基宣言中。