In early Mesopotamian civilization, castor oil served not only as a laxative, but also a skin-softening lotion and it was a construction lubricant for sliding giant stone blocks over wooden rollers.
not only as a laxative, but also a skin-softening lotion and it was a construction
as not only a laxative, but also a skin-softening lotion, and it was a construction
not only as a laxative but also as a skin-softening lotion and as a construction
as not only a laxative but as a skin-softening lotion and in construction, as a
not only as a laxative, but a skin-softening lotion and in construction, a
Faulty logical parallelism.
Minor issue-
castor oil was a construction lubricant
is not same as
castor oil served as a construction lubricant
served as a construction lubricant,castor oil 被用作
前面都是被用作laxative,skin-softening lotion,没理由到了lubricant就变成等价
好比一个人 works as a waiter, a cook, and a cashier,就不好说他 works as a waiter and a cook, and he is a cashier,因为三个属性是并列同时存在的,应该平行
C油可用作建筑润滑剂 说明只是其中一种用途,前面还提到了两种用途,平行语义更加完美
②serve as 作...用...This room can serve as/for a study. (不用在被动语态中)
③not only...but also...and可以用来表示三者平行!
is not same as
castor oil served as a construction lubricant
b, be动词前后不平行
d, e 的in construction找不到平行
(蓖麻子油充当建筑润滑油 √ )