1
the third + noun
在序数词前通常加定冠词the。
He won the third gold medal.
他赢得了第三枚金牌。
第三
先理解核心含义，再看它在真实句子里的用法。
第三
The ordinal form of three; coming after the second.
He won the third gold medal.
他赢得了第三枚金牌。
The ordinal form of the cardinal number three; Coming after the second.
This is the third time I have asked you to finish your homework.
这是我第三次要求你完成作业。
She came in third place in the school running race.
她在学校跑步比赛中获得第三名。
We sat in the third row to get a better view.
我们坐在第三排，以便看得更清楚。
在序数词前通常加定冠词the。
He won the third gold medal.
他赢得了第三枚金牌。
在表示名次、等级等固定短语中常省略the。
She finished in third place.
她获得了第三名。
序数词后接最高级时，序数词在前，最高级在后。
It is the third longest river in the world.
它是世界第三长的河流。
Not this
He lives on three floor.
Use this
He lives on the third floor.
中文中“第三”使用数词“三”，但英语序数词需用“third”，不能直接用基数词。
Not this
She is third child in her family.
Use this
She is the third child in her family.
序数词前通常需要定冠词“the”，中文没有冠词，容易遗漏。
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第三方
We hired a third party to conduct the audit.
我们聘请了第三方进行审计。
第三名
She finished in third place in the race.
她在比赛中获得第三名。
三年级
My daughter is in third grade this year.
我女儿今年上三年级。
第三世界
Many third world countries face economic challenges.
许多第三世界国家面临经济挑战。
第三次
This is the third time I've told you to clean your room.
这是我第三次叫你把房间收拾干净。
第三垒
The runner safely reached third base.
跑垒员安全到达第三垒。
第三次好运
I failed the driving test twice, but third time's the charm.
我驾照考试失败了两次，但第三次好运来了。
电灯泡
When they started kissing, I felt like a third wheel.
当他们开始接吻时，我觉得自己像个电灯泡。
严刑逼供
The police gave the suspect the third degree.
警察对嫌疑犯进行了严刑逼供。
这是一句常用的英语谚语，意思是第三次尝试通常会成功，常出现在电影和电视剧中。
After two failed attempts, she said, 'Third time's the charm,' and tried again.
在两次失败后，她说：‘第三次肯定会成功’，然后再次尝试。
出自1949年经典电影《第三人》，这句话暗示了事件中还有第三人存在。
Detective: 'There was a third man at the crime scene.'
侦探：‘犯罪现场还有第三人。’
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third 由 three 去掉 e 加 th 构成，意为第三。
作为序数词，'third' 没有明显的语域限制，在口语和书面语中都很常用，多用于表示顺序或等级。
通常与定冠词the连用，表示顺序
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.