痛切的英文：
1.(of comments, etc.) unsparingly critical and to the point

参考例句：

I could not erase from my mind the poignant thought.
我无法驱散萦绕在我心头的痛切之感。

Mr. Butler, for some reason to which I am not a party, seems deeply and personally incensed
我不知道为了什么缘故，巴特勒先生好象深刻痛切地动了怒。

etc是什么意思：
abbr. (= et cetera) 及其他，等等

Put(beads,etc)on a thread,etc
将(珠子等)穿在线等上

(of cheeks,etc)hollow as a result of hunger,illness,etc
(指面颊等)(因饥饿、疾病等)凹陷的

(of people,behaviour,etc)displaying selfishness,meanness,etc
(指人、行为等)自私自利的,卑污的,龌龊的

unsparingly是什么意思：
ad. 不宽恕地;慷慨地