Delta is the fourth letter of the Greek alphabet.
δ是
母中的第四个母。
Delta is the fourth letter of the Greek alphabet.
δ是母中的第四个母。
The heading was in large letters.
标题是用大号母印刷的。
The word “debt” contains a mute letter.
在debt这个词中有一个不发音的母。
In a dictionary the words are arranged in alphabetical order.
词典里的词是按母顺序编排的。
It's very difficult! but I think it should be "hexad", and "hex" left when we take away the last two letters.
一个什么样的五个母的词，当你拿掉两个母后还有六个剩下？
声
：
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