a.  宽的，阔的 ≈ narrow

a.  广博的；丰富的；广泛的

a.  粗略的，概括的，一般的

a.  辽阔的，广大的，广袤的

• broaden

  v.  增长〔知识或经验〕；扩大〔活动范围〕

  v. （使）扩大〔影响或所包含的范围〕

  ≈ widen/expand

  v. （使）变宽

• broadly

  ad.  大体上说，总体上讲

  ad. 多方面的，全面的

• broad consensus/agreement  意见大致相同

• broad outline/framework  大致计划/框架

• broad smile/grin  满面的笑容

• in broad daylight  在大白天；在光天化日之下

• broaden out  〔尤指河或路〕逐渐变宽

• broadly speaking  大体上

• Later, I developed a broader theory of what separates the two general classes of learners – helpless versus mastery-oriented. 提出一个更广泛的理论

• Since African agriculture is still broadly unproductive, food is imported, consuming a portion of revenue.

  农业的生产力仍然普遍很低

• It helps broaden their minds. 拓展视野

• Broadly the same holds for the UK, Germany, France, Italy and Canada, and for Japan 50% of 2007 babies can expect to live to 107. 其他的数据也大致相同

• That is why being self-aware, investing in broader networks of friends, and being open to new ideas will become even more crucial skills. 广泛的社交网络

• Broad demographic (人口的) shifts in marital status, educational attainment and employment have transformed the way young adults in the U.S. are living, and a new Pew Research Center analysis highlights the implications of these changes for the most basic element of their lives – where they call home. 人口方面的不同变化

• He was six feet tall, with broad shoulders.

  他身高六英尺，肩膀宽阔。

• Students here study a broad range of subjects. 这里的学生所学的科目范围很广。

• The members were in broad agreement.

  成员的意见大致相同。

• Travel broadens the mind.

  旅行使人胸襟开阔。

• Spending a year working in the city helped to broaden his horizons.

  在城市工作的一年拓宽了他的视野。

• I want to broaden the discussion to other aspects of the problem.

  我想将讨论范围扩展到这个问题的其他方面。

• The council decided to broaden the pavement. 地方议会决定拓宽人行道。

• She knows broadly what to expect.

  她大致知道会有什么结果。

• We invest broadly to lessen the risk.

  我们多方投资，以降低风险。