详细解释
竟
1、(会意。从音,从人。本义:奏乐完毕)。
2、同本义。
竟,乐曲尽为竟。---《说文》
凡乐成则告备。---《周礼》。汉·郑玄注:“成,谓所奏一竟。”
3、泛指结束,完毕。
竟,终也。---《玉篇》
竟,穷也。---《广雅》
谮始竟背。---《诗·大雅·瞻卬》。笺:“犹终也。”
振于无竟。---《庄子·齐物论》
秦王竟酒。---《史记·廉颇蔺相如列传》
语竟。---唐·李朝威《柳毅传》
不能竟书而欲搁笔。---清·林觉民《与妻书》
竟学：学完,学到底
未竟之业;事竟
4、追究。
此县官重太后,故不竟也。---《汉书》
5、终于;到底。
平原君竟与毛遂偕。---《史记·平原君虞卿列传》
竟怒不救楚。---《史记·屈原贾生列传》
竟无语凝噎。---宋·柳永《雨霖铃》
婿竟不调。---明·崔铣《洹词·记王忠肃公翱三事》
6、竟然;倒。含出乎意料之意。
竟杀蛟而出。---《世说新语·自新》
竟尔：竟自。竟然
竟是：还是,毕竟是
竟不然：何不,倒不如。
7、全部;完全;整个。
恩施下竟同学。---《汉书·王莽传》。注:“周徧也。”
君竟日不出门。---清·梁启超《谭嗣同传》
竟三夜罢。---清·邵长蘅《青门剩稿》
竟以宗庙社稷。---清·周容《芋老人传》
竟成痼疾。---清·方苞《狱中杂记》
竟行之。
竟天：满天
竟天价：满天地
竟体：全身
竟夕：整夜,整个晚上
竟世：终生;一辈子。
例句
我为她做了这么多，她怎么竟说出那种话来？
How could she turn round and say that, after all I've done for her?
他的所有辛勤劳动竟全部付诸东流，太让人伤心了。
How sad that all his hard work should come to nothing.
这么陡的峭壁，谁知他竟爬上去了。
Who would have expected that he could climb up that steep cliff?
我无法相信这些人竟这样行事。
I couldn't believe these people were behaving in this way.
他太累了，竟伏在书桌上睡着了。
He was so exhausted that he fell asleep at his desk.
家里竟无人肯帮助她，太不像话了。
It's disgraceful that none of the family tried to help her.
我感到惊奇，你竟中了那个诡计。
I'm surprised you fell for that trick.
我竟傻乎乎地让人说服去参加比赛。
Foolishly, I allowed myself to be persuaded to enter the contest.
他们竟卑鄙到进行人身侮辱的地步。
They descended to the level of personal insults.
她竟记得我的名字，使我万分惊讶。
To my utter astonishment , she remembered my name.
他对待这一批评的态度竟意外的好。
He took the criticism surprisingly well.
医生们十分惊愕的是他竟活过来了。
The doctors were astounded (that) he survived.
我们真蠢，竟以为人人都会说英语。
We foolishly thought that everyone would speak English.
我真蠢，竟相信杰夫和我说的话。
I was foolish enough to believe what Jeff told me.
他竟没认出那是你？真有意思！
And he didn't realize it was you? What a laugh!
我们很惊异地发现竟没有人受伤。
We were amazed to find that no one was hurt.
他着了什么魔竟说出这种话来？
What possessed him to say such a thing?
令人惊奇的是，竟没有人注意到。
Amazingly, no one noticed.
他弄到最后竟干起了演艺这一行。
He eventually found his way into acting.
我没料到自己竟一下子泪如泉涌。
The onrush of tears took me by surprise.
她怎么这么傻，竟爱上了他？
How could she have been so foolish as to fall in love with him?
他们感到震惊的是他竟睁着眼睛说瞎话。
They were shocked by the transparency of his lies.
你竟对他的头发说三道四，真是缺心眼！
It was tactless of you to comment on his hair!
这一次竟成了他对教育体制最后的嘲弄。
It turned out to be his last dalliance with the education system.
我的正直品行竟遭到素昧平生之人的质疑。
My integrity has been called into question by people who have never spoken to me.
我很生自己的气，竟犯了这样愚蠢的错误。
I was very angry with myself for making such a stupid mistake.
我纳闷他怎么从那墙上跳过去竟没摔伤自己。
I wonder (that) he didn't hurt himself jumping over that wall.
他告诉我他是演员，而我真傻，竟相信了他的话。
He told me he was an actor and I was fool enough to believe him.
我真想不到，当着孩子们的面你竟做出这种举动。
I'm surprised at you, behaving like that in front of the kids.
她不明白怎么会有人竟拿人们的生命那样去冒险。
She could not comprehend how someone would risk people's lives in that way.