It was not right to s_________ themselves like that. (隔绝)
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The discovery will help scientists u__________ the mystery of the Ice Age. (阐明)
The social changes which occurred in China are r_______________. (非凡的)
The actress red dress was very c_______________ on the stage. (显眼的)
Improvement is n_______________ in the factory. (显而易见的)
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