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¡¡¡¡Àý£ºIt is observed that although our knowledge greatly exceeds that of our previous ages, there is no corresponding increasing in our wisdom. 
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¡¡¡¡Àý£ºWhen people are mentally engaged, great chemical changes would take place in some cognitive areas. 
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¡¡¡¡Àý£ºIt is established that when people are mentally engaged, great chemical changes will take place in such cognitive areas as memory and focus ability. 
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¡¡¡¡¾äÐÍ1£ºThe lady who was standing at the corner of the street was his girlfriend.
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¡¡¡¡¾äÐÍ2£ºThe lady who ¡­¡­, who¡­¡­ÕâÖÖ¾ä×ÓÔÚËļ¶ÔĶÁÖгöÏÖ×î¶à£¬ÓïÐòÎÊÌâ×îÃ÷ÏÔ£¬ÊÇÔĶÁËÙ¶ÈÂýµÄÖ÷ÒªÔ­Òò¡£ÓÉÓÚWhoµÄ×÷ÓÃÖ÷ÒªÔÚÓï·¨¹¦ÄÜÉÏ£¬ÔÚÎÄ×ÖÉÏûÓбØÒª¶¼·­Òë³öÀ´£¬°Ñwho ¸ô¹ýÈ¥£¬»òÕß±ä³É´ú´Ê¼´¿É¡£ 

¡¡¡¡Àý£ºA person who is traveling, studying and working in a part of Nigeria where his own language is not widely spoken can still communicate with other people in English. 
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¡¡¡¡Àý£ºNow she was in Paris where there were no spies who would overhear her talks with others and where she could speak with any people in any language she would like to speak. 
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