obtuse

adj.

迟钝的；（疼痛）不剧烈的；（印象）不鲜明的；钝角的

obtuse angle钝角

1. "Sometimes it looks more like an obtuse triangle,"Winter said.
   “有时候它看起来更像一个钝角三角形。”温特说。
2. You were too obtuse to take the hint.
   你太迟钝了，没有理解这种暗示。
3. The obtuse editor did not know he was being nibbled at.
   这位脑筋迟钝的编辑并不知道人家是在向他试探消息。

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GROUNDING ELECTRODE