customary tenure 習慣保有
leasehold tenure 租賃管業權
security of tenure 職位的穩定性
例句：
Your tenure as boss was a short one.
你當領導的任期很短。
He did nothing noteworthy during his tenure.
他在任職期間毫無建樹。
There might be a few steps in the chain of tenure.
在土地保有權的環節中可能存在幾個步驟。