duller
（刀等）钝的
呆滞的
不活跃的（dull 的比较级）
例句
The female birds have the same pattern as the males, but they are a little duller in color．
雌性鸟类与雄性鸟类有相同的图案，但是雌性鸟类的颜色更暗淡一点。
A phrenologist and a mesmerizer came—and went again and left the village duller and drearier than ever.
一位骨相学家和一位催眠师来了——又走了，这个镇子比以往任何时候都更加沉闷和乏味。
If insects paid attention to such advertisements, they might be prompted to lay their eggs on a duller, and presumably less resistant host.
如果昆虫注意到这样的广告，这可能会促使它们将卵产在一个更迟钝、据推测更不会抵抗的寄主上。
