with obj.
1
- raise (a sensitive or difficult subject) for discussion提出; 引入（敏感话题, 难题）：
he broached the subject he had been avoiding all evening.
他提出了整晚都在回避的那个话题。
2
- pierce (a cask) to draw liquor（在酒桶上）钻孔汲取。
2.1
- open and start using the contents of (a bottle or other container)开（瓶或其他容器）; 开始饮用。
3
- no obj.(of a fish or sea mammal) rise through the water and break the surface（鱼或海洋哺乳动物）跃出水面：
the salmon broach, then fall to slap the water.
大马哈鱼跃出水面, 然后又“啪”的一声落回水里。
词源
Middle English: from Old French brochier, based on Latin brocchus, broccus 'projecting'. The earliest recorded sense was 'prick with spurs'， generally 'pierce with something sharp'， which gave rise (late Middle English) to sense 2. Sense 1， a figurative use of this， dates from the late 16th cent.
Nautical 【航海】
no obj.
- (of a ship) veer and pitch forward, presenting a side to the wind and waves and losing steerage control（船）突然横转：
we had broached badly, side on to the wind and sea.
我们的船突然横转失控, 整个侧面迎向风浪。
- a sudden and unwelcome veering of a ship having such consequences（船）突然横转。
词源
early 18th cent.: of unknown origin.