Massachusetts is now one of the 10 states in America that have forbidden shark killing.
马萨诸塞州现在是美国禁止捕杀鲨鱼的十个州之一。
Killing pain, however, is one of the things that the placebo effect is best at.
止痛只是众多解释安慰剂效应说法中的一种。
Mercy killing is one of the most controversial issues in the world of medicine.
安乐死是医学界最有争议的问题之一。
Mercy killing is one of the most controversial issues in the world of medicine.
安乐死是医学界最有争议的问题之一。
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