很长一段时间里，这些圆形的蓓蕾在美国本土的饮食上有着举足轻重的作用。
These circular buds have played an essential role in the Native American diet for a long time.
当金星开始穿过太阳的圆盘时，它看起来有斑点，不是圆形的——这使得确定时间变得困难。
When Venus begins to cross the Sun's disc, it looks smeared not circular—which makes it difficult to establish timings.
至于公众的看法：我想，我不认为公众对椭圆形办公室在每件事上花多少时间有什么概念。
As for public perceptions: I guess I'm unconvinced that the public has any idea how much time the Oval Office gives to things.
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