Your sentence was not added because the following already exists.
The previous version (来週の月火は連休だ。) was the only occurrence of 月火 in the sentences, and was being used in WWWJDIC as an example. See http://www.csse.monash.edu.au/~...cgi?1MUJ%E6%9C%88%E7%81%AB This change eliminates it.
Is it really a poor usage of 月火? If so, can you suggest another sentence using 月火 so it it not lost altogether?
来週の月火は連休だ。could be used, but it doesn't sound natural to me.
So, I changed the sentence a little bit. However, 月火（げつか）is also a common word for us.
> 来週の月火は連休だ。could be used, but it doesn't sound natural to me.
Fine - you did the right thing to change it.
> However, 月火（げつか）is also a common word for us.
なるほど. What would be a good substitute? I have heard it in contexts like: 「いつ行こうか」 「月火は大丈夫」 Is something like that natural?
Here are some examples that I think they sound natural.
Ａ：今度はいつ空いてる？
Ｂ：そうだな、来週の月火なら大丈夫だよ。
毎週、月火はピアノ、水金はダンスを習ってるの。
あそこのレストラン、今度の月火は店内改装で休みなんだって。
Great. I'll add the second as a sentence pair. (Feel free to add the others.
Etîket
Hemû etîketan bibîneSentence text
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We cannot determine yet whether this sentence was initially derived from translation or not.
linked by an unknown member, dîrok nayê zanîn
来週の月火は連休だ。
endamekî nenas tevlî kir, dîrok nayê zanîn
来週の月曜と火曜は連休だ。
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