at intervals和on occassion都可以表示间断,请问二者有何区别?
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at intervals和on occassion都可以表示间断,请问二者有何区别?
on occasion后面可以接从句,它的意思是“在.场合".at interval不能这样用,但是它的前面可以有修饰语,表示间隔情况如何.
at intervals or at ...intervals
1)with time between:
例a)Buses to the city leave at regular intervals.
b)The runners started at 5-minute intervals.
2 with spaces between:
Flaming torches were positioned at intervals along the terrace.
at intervals or at ...intervals
1)with time between:
例a)Buses to the city leave at regular intervals.
b)The runners started at 5-minute intervals.
2 with spaces between:
Flaming torches were positioned at intervals along the terrace.
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