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高山罗汉松是一种高山特化种,常见于高海拔沼泽群落和灌木丛中。








在句子“The big dog barks”的句法树中,“the”这个词在名词短语“the big dog”中充当**限定语(specs)**的角色,因为它不是中心名词“dog”,也不是直接修饰中心词的修饰语。








The act or practice of buying land, goods, shares, etc., in expectation of selling at a higher price, or of selling with the expectation of repurchasing at a lower price; a trading on anticipated fluctuations in price, as distinguished from trading in which the profit expected is the difference between the retail and wholesale prices, or the difference of price in different markets.





