答案看起来是这样的：就因为八月底是阿拉斯加北部的北极熊游向北方的海冰的特定时段，文中这只母熊也正是这样做的。
The answer seems to be that, simply, late August is the period when polar bears in northern Alaska head north on to the sea ice, and that is what she was doing.
当加的是标量时，比如5加，答案是9，是唯一的。
When you add scalars, for instance, 4 five and four then there is only one answer, that is nine.
在下面两组短句中，加标点符号和不加标点符号意思有什么区别？我明天和大家对答案。
In the following pair of short sentences, do you see the difference in meaning with or without the punctuation marks? I will compare notes tomorrow.
在下面两组短句中，加标点符号和不加标点符号意思有什么区别？我明天和大家对答案。
In the following pair of short sentences, do you see the difference in meaning with or without the punctuation marks? I will compare notes tomorrow.
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