By 8 o'clock ,at 8o'clock 和on 8o'clock什么区别
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By8o''clock,at8o''clock和on8o''clock什么区别By8o''clock,at8o''clock和on8o''clock什么区别By8o''clock,at8o''clock和on8o''c
By 8 o'clock ,at 8o'clock 和on 8o'clock什么区别
By 8 o'clock ,at 8o'clock 和on 8o'clock什么区别
By 8 o'clock ,at 8o'clock 和on 8o'clock什么区别
应该是：
by 8 o'clock 是在8点附近,一小段时间范围内
at 8 o'clock 是在8点,只是一个时间点
on 8 o'clock 应该是不对的,没有这种用法
by 8 o'clock 是戒指到 8 点，句子多用完成时态
如：I have finished my homework by 8 o'clock
at 8 o'clock 是指在 8点
没有 on 8 o'clock
on 用在时间上是指“正点”，即每一个小时开始的那一时刻，通常表述为 on the hour of...，如 on the hour of 8 am 或 on the hour of the 8th block（= at 8 o'clock sharp）。军事上常用。
By 8 o'clock ,at 8o'clock 和on 8o'clock什么区别
at...o'clock 和 by...o'clock 辨析.
by 8 o'clock什么意思
英语：by around eight o'clock是否等于at about eight o'clock?英语：by around eight o'clock是否等于at about eight o'clock?
by ten o'clock
8 o'clock中的
12o'clock at
She has finished all her work by 8 o'clock.
They must _____(be)at school by eight o'clock
Pick me up at 8o'clock.I will have finish my work by then.这句话对吗
Pick me up at 8o'clock. I will have over my bath by then.这句话对吗
英语翻译{ } { } you usually{ } { } { At{ }8:00 o'clock
Our ___(one) class starts at 8'o clock.
We start lessons at 8 o'clock .(改为一般疑问句 )
i often go to school at ____ 8 o'clock
what were you doing at 8:00 o'clock?we____.
Shall we meet at a ____ 8 o'clock?
i usually start (work at 8 o'clock).划线提问