rarer
adj. 更稀罕的；更珍贵的（rare 的比较级）
例句
Moonbows are rarer than rainbows.
月虹比彩虹更罕见。
New species of snakes, however, are much rarer.
然而，新品种的蛇则要稀有得多。
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。
