英语:by around eight o'clock是否等于at about eight o'clock?

问题描述:

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?

不一样,about与around一样,但by是指截止某时间之前,用完成时,at指在几点,用一般时