once or twice year的意思|示意

Under the classic corporate hierarchy to which most businesses still adhere, HR centrally administers a performance evaluation once or twice a year.

在大多数公司仍在执行的传统组织结构中，人力资源部负责进行每年一次或两次的绩效评估。

Keaton comes here once or twice a year to soak up the atmosphere.

基顿每年来这里一两次，感受这里的氛围。

Small birds molt once or twice a year, and they replace their 9 or 10 primary flight feathers a few at a time over the course of a few weeks.

小型鸟类一年进行一到两次换羽，在换羽期间，它们一次会替换掉9到10根左右的飞羽，而这个过程将持续几周时间。

For decades they met once or twice a year, in relative obscurity, to talk over technical issues, exchange gossip and renew old friendships.

几十年来，他们每年聚会一到两次，不怎么高调，谈谈技术问题，交换一下八卦，增进一下友谊。

Some people still live in their hometown. However, others may only see it once or twice a year.

有些人依然住在家乡，然而，另一些人可能一年只能回家乡一两次。

This happens about once or twice a year, on the average, but not each month since the Moon's orbit around the Earth is slightly tilted.

这种情况每年平均发生一两次，不是每月都发生，因为月球绕地球公转的轨道稍稍有点斜。