請問各位:
I heard on the radio that there is evidence that dophins suffer in capitivity
. Dolphins that are free in [X] nature live around 40 years. Captive dophins
live [an] average of 12 years.
第一個[]不能用the是因為nature不能指定,可是我們如果都知道不是要用the嗎?
第二個是看作某一個平均的意思嗎? 前一句算提到存活壽命嗎? 想說可以用the...
剛剛看到另一句:
How many tooth does the average person have?
為什麼這邊就可以用the呢?