我看我補習班老師(我是台灣的學生)解釋是說,at 40 to 44 million years old這段話中~at 40 to 44 million years算是副詞,修飾後面的old(這裡的old作形容詞) 所以不能用estimate at,因為 estimate at+N. 各位覺得有道理嗎?? 我自己也一直在思索!
以下是引用hyte在2006-2-11 19:45:00的发言: 我看我補習班老師(我是台灣的學生)解釋是說,at 40 to 44 million years old這段話中~at 40 to 44 million years算是副詞,修飾後面的old(這裡的old作形容詞) 所以不能用estimate at,因為 estimate at+N. 各位覺得有道理嗎?? 我自己也一直在思索!
我的理解:这里之所以用to be可以参考OG-9的解释: OG-9: ...explosion, one they believe to be of a type previously unknown.... OG解释:the infinitive to be ... referring to an event that occurred long ago but has been discovered only recently.