The option to make 做出选择
He said the government will also make it easier for people to save their federal tax refunds, with an option for depositing the money into their retirement accounts.
VOA: standard.2009.09.05
This is very easy molecule because we know exactly where to put them without even having to think, we only have one option, and we'll make a triple bond between the carbon and the nitrogen.
这个分子非常简单,因为我们知道应该把它们放在哪里,甚至不用去想,我们只有一个选择,我们将在碳与氮之间形成一个三键。
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