It is important for the protection of our country to know what is up there.

对于保卫我国的安全来说,重要的是必须知道在天上飞行的是什么.

辞典例句

What is up, what are you doing on the mat?

出什么事了, 你在做什么受责备的事 呢 ?

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What is up? Jukes , the engineer, asked.

“怎么回事? ”工程师 朱克斯 问.

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What is up with Alaska?

阿拉斯加到底怎么了?

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What is up with the universe?

这世界到底怎么了?

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