Fluoride has been banned for using in AC units,lessening the ozone layer's depletion.
這句話當(dāng)然不成立.
理由是現(xiàn)在分詞的邏輯主語應(yīng)該與句子主語保持一致.Fluoride只能是被使用于...中,而不是使用于...中
所以應(yīng)該用現(xiàn)在分詞被動(dòng)形式
Fluoride has been banned for being used in AC units,lessening the ozone layer's depletion.
而這也不正確,因?yàn)閎an的用法是加from而不是for來表示禁止做某事,這樣就得改為
Fluoride has been banned from being used in AC units,lessening the ozone layer's depletion.
這樣一來整個(gè)句子就顯拖拉了.
而使用use的名詞形式就不存在這些條條框框.
Fluoride has been banned for use in AC units,lessening the ozone layer's depletion.
use in AC units 在空調(diào)設(shè)備中的使用,in AC units 介詞短語作use的后置定語
以上是我的理解,大家探討一下
Lucy has completed courses of studying in ABC college.
(or)Lucy has completed courses of study in ABC college.
兩個(gè)都對