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1.The study was carried out in the United Kingdom.
carry out 执行；实行
Police say they believe the attacks were carried out by nationalists.
警方称他们认为这些袭击行为是民族主义分子发动的。
2.The researchers said that night owls were more likely to suffer from mental problems, diabetes, and stomach and breathing troubles.
suffer from 遭遇；忍受；患...病
I often suffer from unaccountable headaches.
我常莫名其妙地头疼。
