有历史记载以来,人类就已经学会了怎样追求健康和治愈疾病.
since the beginning of recorded history 状语
humans 主语
have been know 谓语
谓语后接两个平行的to do结构
to seek 和 to cure
有历史记载以来,人类就已经学会了怎样追求健康和治愈疾病.
since the beginning of recorded history 状语
humans 主语
have been know 谓语
谓语后接两个平行的to do结构
to seek 和 to cure