[求助]2003-01

gigiga0118

30. Primitive humans probably did not deliberately cook food until long after they had

A                 B

learned to use fire for light and warm.

請問一下

B這裡有沒有問題???

until是介詞
long可以是形容詞,副詞

介詞後不該接N詞嗎??

until long after.....

這樣的用法

語法上市怎麼安排的?????????

2. after 這裡當介詞嗎?????????????

gigiga0118

up~~~~~~

consonant

long after  adv ....很久以后

until   conj+ they had.........