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- Of course, the meteor was part of the annual rain of dust from periodic Comet Swift-Tuttle known as the Perseid Meteor Shower. 斯威夫特-塔特尔彗星周期性回归后,遗留下的尘埃形成一年一度的流星雨,也就是闻名的英仙座流星雨,当然,这颗流星就是其中的一部分。
- The meaning of identification of ancient comets is summarized: it is useful to study a long-term evolution of short- period comets and chronology. 总结了 古代彗星证认的意义:一是有助于短周期彗星长期演化的研究,二是有助于历史年代的 确定。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- Patience is a sine qua non for a good teacher. 做个优秀教师必不可少的条件是要有耐心。
- The diplomat was declared persona non grata. 这位外交家被宣布为不受欢迎的使节。
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- He is declared personal non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- I had had a few beers and was completely non compos mentis. 我喝了些啤酒就头昏脑胀了。
- He had to decide within a given period. 他得在一定时间内作出决定。
- She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。
- He was declared persona non grata and forced to leave the country. 他被宣布为不受欢迎的人而被迫离开该国。
- In that period auto sales hit a14-year low. 这时期汽车销售量达到14年来最低水平。
- In this period, unemployment reaches record levels. 这段时间的失业人数又达到了创纪录水平。
- Which period of history are you studying? 你正在学哪一段历史?
- We decided to declare them personae non grata. 我们决定宣布他们为不受欢迎的人。
- periodic comet 周期彗星
- Can you tell me the time period when it was stolen? 能不能告诉我大概什么时候被偷的?
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries