1. She invoked several eminent scholars to back up her argument.
她援引了几位赫赫有名的学者来支持她的论点。
《牛津词典》
2. Other actions can be taken to back up the policy.
可以采取其他行动来支持该政策。
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3. Furthermore, one sensory ability may backup another.
此外，一种感知能力可能会为另一种感知能力提供支持。
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4. Let's back up again and talk about the time period from the 1860s to the 1880s and talk more about what happened in women's art classes.
让我们再次倒退，回到19世纪60到80年代，来多谈谈女性艺术课上发生了什么。
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5. You can back up another two feet or so.
你可以再退两英尺左右。
《牛津词典》
6. That sort of attitude really gets my back up!
那种态度实在叫我恼火！
《牛津词典》
7. The writer doesn't back up his opinions with examples.
作者不用实例印证他的看法。
《牛津词典》
8. Radio signals received from the galaxy's centre back up the black hole theory.
从该星系中心接收到的无线电信号证实了黑洞理论。
《柯林斯英汉双解大词典》
9. He's now back up on the slopes again, skiing competitively in events for the disabled.
他如今又回到了滑坡上，在残疾人赛事上赛滑雪。
《柯林斯英汉双解大词典》
10. I hit the ground and bounced back up.
我撞到地上，弹了回来。
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11. He used all his strength to raise the tree back up again, and look after it until it completely recovered.
他用尽所有的力气把树扶起来，并照顾它，直到它完全康复。
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12. The weight of the ball causes the dragon's head to move down and the dragon's tail pulls the water bowl back up.
球的重量使龙头向下移动，龙尾将水碗拉起来。
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13. "It might take the monarchs as many as four to five generations to complete the journey all the way back up to Canada," says Sarina Jepsen, who directs the endangered species program for the Xerces Society.
