英语释义
1
n an interval during which a recurring sequence of events occurs
2
n a series of poems or songs on the same theme
3
n a periodically repeated sequence of events
4
n the unit of frequency; one hertz has a periodic interval of one second
5
n a single complete execution of a periodically repeated phenomenon
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n a wheeled vehicle that has two wheels and is moved by foot pedals
7
v cause to go through a recurring sequence
11
v recur in repeating sequences