would rather have a mind opened by wonder than one closed by custom这里的custom为什么不用加s

问题描述:

would rather have a mind opened by wonder than one closed by custom这里的custom为什么不用加s

wonder也没有加s 啊什么意思前面有个by wonder 与后面by custom是相对应的wonder为什么不用加s这个就像骑自行车都说by bike 不说by bikes