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periodism | |||
cycly (cyclia) | |||
periodic phenomenon | |||
photoperiodism | |||
periodical phenomenon |
周期现象 : 22 phrases in 9 subjects |
Agriculture | 8 |
Botany | 2 |
Business | 1 |
Commerce | 2 |
Desert science | 1 |
Environment | 1 |
Information technology | 1 |
Oil / petroleum | 1 |
Technology | 5 |