a while
collocation一段时间
I waited for a while, but she didn't come.
我等了一会儿，但她没来。
一会儿；一段时间
先理解核心含义，再看它在真实句子里的用法。
一会儿；一段时间
A period of time, especially a short one.
Let's sit here for a while and watch the sunset.
我们在这儿坐一会儿，看看日落吧。
不确定的时间段,一段时间
An uncertain duration of time, a period of time.
一段不确定的(通常短暂的)时间,以某种行动或条件为标志
a period of indeterminate length (usually short) marked by some action or condition
After a while, the coffee began to cool down.
过了一会儿，咖啡开始凉了。
AI contextual example
It took me a while to finish the puzzle.
我花了一段时间才完成拼图。
AI contextual example
he was here for a little while
他在这里待了一小会儿。
WordNet
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一段时间
I waited for a while, but she didn't come.
我等了一会儿，但她没来。
暂时；一会儿
He decided to rest for a while.
他决定休息一会儿。
不久；过一会儿
I'll be back in a while.
我一会儿就回来。
过了一会儿
After a while, the rain stopped.
过了一会儿，雨停了。
相当长的一段时间
It's been quite a while since we last met.
自从我们上次见面已经很长时间了。
一小段时间
Can you wait a little while longer?
你能再等一小会儿吗？
偶尔；间或
I like to treat myself to a fancy dinner once in a while.
我偶尔会犒劳自己一顿丰盛的晚餐。
值得某人花时间（或精力）
It's worth your while to take a short break after studying for hours.
学习几个小时后，短暂休息一下是值得的。
一直；始终
He pretended to be asleep, but all the while he was listening to our conversation.
他假装睡着了，但一直都在听我们说话。
这已经等了很久很久了，但我知道改变即将到来，哦，是的，它会来的。
The song 'A Change Is Gonna Come' by Sam Cooke includes the line 'It's been a long, long time coming,' which uses 'while' implicitly through 'long time.'
山姆·库克的歌曲《改变即将到来》中有一句‘已经等了很久很久了’，其中‘long time’隐含了‘while’的意思。
我一会儿就到。
Commonly used in movies and everyday speech, e.g., in 'The Terminator' Arnold Schwarzenegger says 'I'll be back,' but 'in a while' is a standard phrase.
电影和日常对话中常用，例如在《终结者》中阿诺德·施瓦辛格说‘我会回来的’，而‘in a while’是标准短语。
Use while naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
while 作名词指‘一会儿’，音近‘外’，联想：在‘外’等了一会儿。
中性；多用于非正式口语或一般叙事，如'for a while'、'a long while'等表达。通常与其他词搭配使用，不单独作主语。
通常与冠词a连用，表示一段时间。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.