appear to have been equipped to face any
obstacle the environment could put in their path,
去掉have说明,equip和appear是同时态,不合逻辑。
完成时有个作用,就是把时态往前挪,说明equip发生在appear之前。
OG中还有一题。
....,whether the visitor still comes to the zoo to see the rhino once the animal's horns have been trimed.
大概是这样,下面有一行解释,说明have been trim发生在come之前。
-- by 会员 kidvii (2011/11/25 23:17:30)
appear to have been equipped to face any
obstacle the environment could put in their path,
去掉have说明,equip和appear是同时态,不合逻辑。
完成时有个作用,就是把时态往前挪,说明equip发生在appear之前。
OG中还有一题。
....,whether the visitor still comes to the zoo to see the rhino once the animal's horns have been trimed.
大概是这样,下面有一行解释,说明have been trim发生在come之前。
-- by 会员 kidvii (2011/11/25 23:17:30)
如果说把时态往前挪,OG上的解释是因为Neanderthal已经disappeared,即在过去已经消失了,那eqiup应该是发生在disappear之前的,应该用过去完成时啊。。。
-- by 会员 aiaizun (2011/11/27 22:42:10)