- 重点词汇
- 相关例句
In 1867 the United States purchased Alaska from Russia for $ 7.2 million.
1867年的《转让阿拉斯加专约》规定,美国以720万美元购得俄属阿拉斯加.
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When dishes are to you, extend your hand and help yourself to a moderate portion.
当一盘一盘的菜肴传给你时,不用客气, 尽管伸出你的手,但只取适当的份量.
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