He is a one-time math teacher of mine.

他是一位我曾经的数学老师。

The bank demanded a one-time sum payment.

银行要求一次性付清欠款。

The vegetables in the market were sold out one-time.

市场里的蔬菜一下子就卖完了。

Polyethylene (PE) model of spin one-time molding process autopoietic.

聚乙烯（PE）旋塑成工艺一次性模式成型。

This is a one-time setup.

这是一个一次性的设置。

Reform cannot be a one-time effort.

改革不是一蹴而就的。

This one-time set-up is required for each remote service.

这种一次性设置每个远程服务都需要添加。

At one time 400 men, women and children lived in the village.

曾一度有400个男人、女人和儿童住在这个村子。