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Unknown Subject of an Investigation, 不明嫌疑犯
🗣️ 情景例句
I am available as soon as possible.
我随时都可以上班。
God! It's a hard stuff.
唔！这家伙是个硬骨头。
many of them serious and senior scientists---- who dream of sending people to it.
其中的不少人是认真和资深的科学家，他们一直梦想着把人送上火星。