突然一个小光点闪烁在主屏上。

Thensuddenly, a tiny spot of light began to show on the main monitor.

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主屏为您提供了四个选项，其中只有三个是可用的。

The main screen gives you four options, of which only three are available.

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突然，一块亮斑出现在了主显示屏上。

Then suddenly, a tiny spot of light began to show on the main monitor.

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突然，一块亮斑出现在了主显示屏上。

Then suddenly, a tiny spot of light began to show on the main monitor.

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