OFF AND ON/ON AND OFF - Định nghĩa trong Từ điển tiếng Anh
off and on/on and off (adverb)
Giải nghĩa:
Sometimes, not all the time
Ví dụ:
He's been working on that project off and on for several months.
off and on/on and off (adverb)
Giải nghĩa:
With interruptions, not continuously
Ví dụ:
The light kept flickering off and on.
Cách sử dụng
The expression "off and on" or "on and off" means to do something or happen intermittently, with periods of time when it is done or happening, followed by periods of time when it is not done or happening. For example, if someone says, "I have been studying Spanish off and on for the past year," it means that they have studied Spanish at times, but also had periods of time when they did not study. Another example might be, "The power has been going on and off during the storm," which means that the electricity has been going out and coming back on in intervals.
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