U开始的是辅音英标
H开始的是元音英标
辅音英标前用a
元音英标前用an
There is _____"u"and______"h" in the word "hour"
There is _____"u"and______"h" in the word "hour"
为什么？a和an的各有哪些
为什么？a和an的各有哪些
英语人气：719 ℃时间：2020-03-26 11:39:54
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