Hope for the best and prepare for the worst.

如题.

2017-01-18 提问者:jenny畅游世界

问题图片

教师解答

尚未回答。

学生讨论

张大白话:

好

2017-01-18

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garida:

好

2017-01-19

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xuyuanxing:

Good

2017-01-19

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xuyuanxing:

Good

2017-01-19

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xuyuanxing:

Good

2017-01-19

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xuyuanxing:

Good

2017-01-19

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xuyuanxing:

Good

2017-01-19

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xuyuanxing:

Good

2017-01-19

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