She was sitting in a comfortable rolling-chair, which could be pushed from room to room.

她坐在一张舒适的轮椅上，轮椅可以从一个房间推到另一个房间。

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They have found trends which could be used to forecast "bad years" for strandings in the future.

他们发现了一些趋势，可以用来预测未来出现事故的“艰难时代”。

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Further down the road is biometric authentication, which could be encrypted with, say, a fingerprint.

下一步是生物识别认证，可以用指纹等进行加密。

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The government would pay for the silver with paper money -- treasury notes -- which could be exchanged for gold or silver money.

VOA: special.2010.06.03

In addition, it had a butt made also of bronze, which could be a lethal weapon.

另外,它的尾部也是铜质的,同样也可作为一种有力的武器

耶鲁公开课 - 古希腊历史简介课程节选

It can have a very sarcastic undertone which could be good, depending on what you need to express.

它可以表达一种带着挖苦意味的好意，这取决于你表达的需要。

Do you ever课堂 - SpeakingMax英语口语达人

There has been much controversy over the proposed 5% levy, which could be introduced as early as 2007.

BBC: NEWS | Europe | Jersey | ?1m cost of implementing new tax

Medical staff who examined photographs suggest it is human placenta which could be two weeks old.

BBC: 'Placenta' found by London dog walker

No oil was found there, which could be an important clue in the investigation.

CNN: STORY HIGHLIGHTS