adj.过去的，从前的

Onetime mandatory call → 一次性强制转换的认购
onetime friend → 曾经的朋友
onetime former → 指时间上某点
onetime programmablee → 可一次性编程的
onetime former previous → 指时间上某点
at onetime → 曾经；一度
onetime loss → 一次性亏损
onetime charges → 一次性重组费

1.His information was granted to him by the archangel Metatron, the onetime patriarch Enoch.
[汉]他的资料是经过天使长梅塔特隆，从前的族长以诺的许可而写来的。
1.His information was granted to him by the archangel Metatron, the onetime patriarch Enoch.
[汉]他的资料是经过天使长梅塔特隆，从前的族长以诺的许可而写来的。

【Adjective】

1. belonging to some prior time;
"erstwhile friend"
"our former glory"
"the once capital of the state"
"her quondam lover"