Conversion of hydrocarbons
[建] 烃类的转化
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. <化>碳氢化合物, 烃( hydrocarbon的复数形式 )
🗣️ 情景例句
Sam, would you come in, please?
Sam，请进来一下， 好吗？
Try to be there by 8:15 the airport will be crowded.
尽量在8点15分以前赶到那里，到时机场会很拥挤的。
My cousin, Harry, keeps a large curiously-shaped bottle on permanent display in his study.
我的堂兄哈里在他的书房里一直摆着一只形状古怪的大瓶子。