It had long been thought that hummingbirds, which forage by day, pollinate its red flowers and that hawkmoths, which forage at night, pollinate its white flowers.

长期以来，人们一直认为，白天觅食的蜂鸟会给它的红色花朵授粉，而晚上觅食的鹰蛾会给它的白色花朵授粉。

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Although it dates from several hundred years after the building of the pyramids, its sophistication suggests that the Egyptians might have been developing ideas of flight for a long time.

尽管它的历史可以追溯到金字塔建造后的几百年，但它的复杂程度表明，埃及人可能很长一段时间以来一直在思考飞行的想法。

youdao

When a banded bird is recaptured and reported, we learn about its migration route, its growth, and how long it has been alive, its lifespan.

当一只被戴了标记环的鸟被重新捕获时，我们就能从报告中了解其迁徙路线、生长情况以及存活时间、寿命。

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But its power over Internet and wireless communications has long been questioned.

VOA: special.2010.04.09

"For me,the best health news of the previous decade is the fact that the long overdue influenza pandemic has been so moderate in its impact .

VOA: standard.2010.01.18

China has long been listed as a "country of particular concern" by the State Department for its record on religious freedom, as has U.S.Persian Gulf ally Saudi Arabia.

VOA: standard.2009.10.26

Its been a long road with only a very modest return to date.

FORBES: AVEO: An early stage VC's perspective

But its learning curve has been painfully long, its manners uncouth and its coalition partners loutish.

ECONOMIST: Poland's awkward government

Barnet FC has been trying to leave its current Underhill home for a decade and the Copthall venue has long been its preferred choice.

BBC: Barnet FC blasts council on Copthall stadium plans