A well-trained dog is more confident and can more safely be allowed a greater amount of freedom than an untrained one.

一只训练有素的狗更自信，给它更多的自由时间会比未经训练的狗更安全。

youdao

The well-trained dog rushed like an arrow, running very fast and full of confidence.

这只训练有素的狗像箭一样飞奔出去，跑得非常快，充满信心。

youdao

Each dog had been trained for three weeks to sit when it smelled cancer.

每只狗都经过了三周的训练，在闻到癌症气味时会坐下。

youdao

Glenn Close says when she learned that Sgt.Bill Campbell - the first veteran to receive a Dog Tag dog - was returning to the prison to meet the inmate who trained Pax, she had to capture that moment.

VOA: standard.2010.05.18

"A well-trained dog and a very good, well-trained handler can find explosives with little or no false alarms, " Beltz said.

CNN: Are dogs the key to bomb detection at airports?

Justice Kagan and the two justices who joined her concurrence considered a trained drug-detection dog to be a device not in general public use, and on those grounds would have found its use unconstitutional in light of Kyllo.

FORBES: Supreme Court Finds The Use Of A Drug-Sniffing Dog To Investigate A Home Unconstitutional

To test their theory they monitored the daily outdoor routines of two people, one was alone and the other was accompanied by a dog trained to ignore passers-by so it would initiate social contact.

BBC: Dogs help you make friends