一年一次的

Using a refractor "with a 5-inch f/5 Jaegers objective, I have observed 350 of 600 deep-sky objects that I know are possible, most of them many times."

我已经在城市里观测天体30年了，"他写道，"使用一台5英寸的折射镜，我已观测了我所知的500个深空天体中的350个，其中大多数都不只一次。

At one Army base, the annual trip to the rifle range had been cancelled for the second year in a row, but the semi-annual physical fitness test was still on as planned.

在一个军事训练基地，年度射击测试连续第二年被取消了。但是半年一次的身体素质检查却仍在计划之内。

He was busy with a septennial electionwhen I visited him last summer.

我去年夏天去看望他时他正忙于七年一次的大选。

I came here one year ago,I was live in Taiyuan of Shanxi province,when I came to China.

我来北京快一年了。当我第一次来中国的时候，我曾在山西太原生活过。

To accommodate this endless growth the king must shed its skin four to six times a year.

为配合这无止尽的成长，它一年必须脱皮四到六次。

A traditional Icelandic sod house built into a hillside faces the wide expanse of Vatnaj?kull glacier. Vatnaj?

一座冰岛传统草泥墙房子建在面向宽广的瓦特纳考冰川的山坡上。1996年11月的一次火山喷发就发生在瓦特纳考冰川所在地。

In that year, he was invited for the first time to speak of spiritual matters.

在这一年，他应邀第一次发言的精神问题。

She said most users of tanning beds use them less than 20 times a year.

她说日晒床的使用者一年大多用不到20次。

It was the first time in a year and a half that I'd seen the night face to face...

这是在这一年半的时间里我第一次面对面的看到夜晚

It is estimated that multifraction print runs over the past year and a half time decreased by 20%.

据估算，单次印量在过去的一年半时间里下降了20%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。