利息将每半年一次于六月份和十二月份支付。

Interest will be paid half-yearly in June and December.

《牛津词典》

最好是每半年一次，如果发现矫正视力下降，要及时来检查。

Every six months would be best. If your corrected vision decreases, please have it checked immediately.

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与你的直属主管一起进行年中绩效回顾。建议每季度一次，但至少每半年一次。

During the year to review your performance with your team leader. Aim to do this every quarter but at least once each half year.

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