occurance的相關(guān)資料：
臨近單詞
occur
Occurring without disruption.
occurring at fixed intervals.
Occurring above ground or water.
occurring or payable every week.
Occurring between glacial epochs.
occurring or payable every month.
occurring period of Pinus massoniana
occurring immediately after birth.
occurring or existing before birth.
Occurring suddenly or unexpectedly.
