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1·Moonbows are rarer than rainbows.

月虹比彩虹更罕见。

2·New species of snakes, however, are much rarer.

然而，新品种的蛇则要稀有得多。

3·Taxis on a rainy New York night are rarer than sunshine.

在纽约的雨夜打车比见到阳光还难。

4·French kissing is rarer still.

而法式深吻则更加少见。

5·And several are even rarer than gold.

有集中甚至比黄金更稀有。

6·The Earth's freshwater is even rarer.

地球上的淡水更为稀少。

7·Programs using yacc, but not lex, are rarer.

使用yacc而不使用lex的程序比较罕见。

8·“A good pearl is rarer than a diamond,” he says.

他说道：“好珍珠比钻石还罕有。”

9·It's even rarer I give someone my direct number.

并不经常觉得出租车来早了，更稀奇地是，我还会给某人留了号码。

10·In America panic among CDS buyers has been rarer.

在美国，信用违约互换的买家中尚难觅恐慌的踪迹。