By contrast, there is a clear reason to be concerned about the use of cloning in animal breeding.(相比之下，這里有一個清楚的理由，讓我們去關注克隆技術在生物繁殖方面的用處。)

You may be concerned about the application's memory usage pattern: Is it using too much memory?(您可能關心應用程序的內存使用模式：是否使用了太多內存？)

United must primarily be concerned about the medium and long-term prospects.(曼聯主要的擔憂須系于中長期發展前景上。)

They pretend to be concerned about freedom, but the only 'free' they care about is' free of charge. '.(他們假裝關心自由，但他們關心的‘免費’只是'不收錢'的那種。)

A new study has found another reason to be concerned about dental surgery.(一個新的研究已經發現另外一個原因是擔心牙科手術。)

Old people do fall frequently, of course, and they're right to be concerned about minimizing the hazard.(當然，老年人經常會摔倒，他們對如何減少傷害的關心是正確的。)

We have every reason to be concerned about the health of survivors.(我們有充分的理由對幸存者的健康表示關切。)

There should be forces in society who should be concerned about the budget, but they shouldn't be functioning simultaneously as doctors.(社會上應該有一些人去關注預算，但他們不應該同時扮演醫生的角色。)

Should you be concerned about your child's atypical gender behavior?(你開始擔心您孩子那些奇怪的與性別不符合的行為了嗎？)

You do not have to be concerned about licensing when you use bigger or more instances.(在使用更大或更多實例時，不需要考慮許可證問題。)