Both the R groups are alkoxy residues.两个R基团都是烷氧基.R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基....
Though she can't talk yet, she understands what is going on.虽然她还不会说话，可发生的这一切她都懂。He says that he understands why they behaved so appallingly.他说他知道为什么他们的行为如此恶劣。She understands why I get tired and grumpy.她理解我为什么累、为什么爱发...
I confess the inhumanity of this action moved me very much, and made me relent exceedingly.我自认这种不人道的举动使我很痛心, 我非常怜悯她.It was easier to confess everything and implicate everybody.把什么东西都招认,把什么人都拉下水,是很容易的事.I must confess, I&#...