He neglected to be responsible for the function of the pump. The vapour was ignited by an upright torch.
从上面句子中，我们学习responsible/rɪˈspɒnsəbl/ adj 负责的；有责任的，responsible来自respond/rɪˈspɒnd/ v 回应；相应，可以认识词根-pond-承诺！
通过-pond-承诺，我们熟悉一下下面的单词：
respond v 回应；响应
responsible adj 负责的；有责任的
对比：reply/rɪˈplaɪ/ v/n 回答；回复。reply指更广泛的回应（口头回答、书面回复、电子邮件回复）；而respond更侧重于对情况、事件或刺激的有意义反应。
I asked him his name, but he didn't respond.
How did they respond to the news?
The car responds very well to the controls.（controls /kənˈtrəʊlz/ n 管理；控制）
respond
to reply to a question/an advertisement
He never replied to any of my letters.
The terrorists replied to the government's statement with more violence.（terrible/ˈterəbl/ 可怕的；terrify/ˈterɪfaɪ/ 使害怕；使恐惧；terrorist/ˈterərɪst/ 恐怖分子。但是terrific/təˈrɪfɪk/极好的！violence/ˈvaɪələns/ n 暴力；暴行。violent adj 暴力的，剧烈的）
replay更加的具体
correspond/ˌkɒrəˈspɒnd/ v 相一致（类似）；符合
就医：cor~com，共同反应，行动一致，利益相符！
Your account of events does not correspond with hers.（account/əˈkaʊnt/ n 解释；账户）
This period corresponds with the liturgical season of Christmas.（litrugical/lɪˈtɜːdʒɪkl/ adj 礼拜式的）
The working of this machine corresponds to that of the human brain.相当于/类似
correspondence/ˌkɒrəˈspɒndəns/ n 来往信件；通信
personal/private correspondence 私人来往信件
the correspondence column/page 读者来信专栏I refused to enter into any correspondence
We have been in correspondence for months.
despond/dɪˈspɒnd/ v/n 灰心，失望
That he didn't finished the work on time despond me
He was sinking into the Slough of Despond（sink v 沉！；slough/slʌf , slaʊ/ n 泥沼）
Man's Dream of Escaping from "the Slough of Despond" 逃出绝望之渊
despondent/dɪˈspɒndənt/ adj 沮丧的；失望的 despondency n
A despondent loser, mood, look
She was becoming increasingly despondent about the way things were going.（increase/ɪnˈkriːs , ˈɪŋkriːs/ 增加。crea~create创造，in强盗，decrease 减少，降低）
a mood of despondency 沮丧的心情
sponsor/ˈspɒnsə(r)/ n 赞助商；发起人 v 赞助；主办
记忆：spon-承诺，-or人。承诺给你出钱，投入资金的人！金主爸爸！！！
The race organizers are trying to attract sponsors.（race n 比赛 radical adj 激进的）
I'm collecting sponsors for next week's charity run.（charity/ˈtʃærəti/ n 慈善；慈善机构。）
the sponsor of the new immigration bill（migrate/maɪˈɡreɪt/ v 迁移；immigrate （从外地来）移民~emigrate 移居国外。immigration n 移民。bill/bɪl/ n 账单；法案 v 给开账单）
sponsor
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