“派生物”造句
《洁净水法案》1977年的修正案,是这些问题的
派生物.
The 1977 amendments to the Clean Water Act were an outgrowth of these problems.
最初的源头生成了几个
派生物.
There were a few derivatives obtained from the original source.
为什么白金雀儿碱的
派生物是苦的?
WHY ARE THE LUPANINE DERIVATIVES BITTER?