dome
n
1 rounded roof with a circular base 穹顶; 圆屋顶
the dome of St Paul's cathedral 圣保罗大教堂的穹顶.
2 thing shaped like this 圆顶形物; 穹形物
the dome of a hill, the night sky, a bald head 山包、 黑夜的天穹、 光秃的头顶.
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起,加拿大从1870年左右起,殖民者开始向西迁移,并把平原据为己有。
For example, you can send information abroad immediately, but mailing a letter might take a week or so.
例如,你能够马上发送信息到国外,但寄一封信可能要大约一周的时间。
For his lifentime's work in studying the communication of animals, including honey bees, Professor Karl von Frisch was given a Nobel Prize in 1973, which he shared with two other scientists. He died in 1982.