一年一次

Air filter - the air filter must also be changed once a year.

空气过滤器-空气过滤器也必须改变一年一次。

Tell me that our yearly Americana road trip isn't fun.

我们一年一次的美国文物旅行没意思吗？

Article 17 of the foreign passport (including spouses and children who are minors), but by the Beijing work and other relevant proof residence to bid for two years, the public security organ or the foreigner's residence permit effective entry visa (many year shall not exceed passport validity), Short-term calchas departure, Beijing may apply for visa.

第十七条持外国护照的留学人员，可凭《北京市工作居住证》等有关证明向公安机关申办两年有效的外国人居留许可或一年多次出入境签证；短期来京不能按期离境的，可申请签证延期。

Boxing Day takes its name from the old custom of giving employees or tradesmen an annual present or 'Christmas box' on that day, it has nothing to do with the sport of 'boxing'!

节礼日的名字来自一个旧的风俗习惯，在那一天人们给雇员或送货员一年一次的礼物或"圣诞礼盒"，这与拳击运动毫无关系。

If the Templars or Hospitallers come to a church which is under an interdict, let them be allowed to hold the services of the church only once a year and let them not bury there the bodies of the dead.

如果戒酒或Hospitallers来这是一所教堂的阻截下，让他们被允许持有的服务，教会只有一年一次，并让他们有没有掩埋的尸体，死者。

One step at a time, a leap year.

一步一个脚印，一年一次飞跃。

Almost half the Chinese cabinet is trooping to Washington, DC, for the second of the twice-yearly discussions, conceived by Hank Paulson, America's treasury secretary, between the world's largest economy and its fastest-growing one.

几乎半数的中国内阁阁员列队前往华盛顿特区出席第二次战略经济对话。这种世界上最大的经济体和世界上增长速度最快的经济体之间的战略经济对话由美国财长汉克·保尔森创设，一年两次。

Almost half the Chinese cabinet is trooping to Washington, DC, for the second of the twice-yearly discussions, conceived by Hank Paulson, America's treasury secretary, between the world's largest economy and its fastest-growing one.

近半中国内阁阁员正列队前往华盛顿特区出席第二次战略经济对话。这种世界上最大经济体和增长速度最快经济体之间的战略经济对话由美国财长汉克保尔森发起，一年两次。

A team from the University of Wollongong compared people who paid for a year's gym membership in advance to those who signed a contract but paid by fortnightly salary deductions.

研究结果表明，一年一付的人平均每月锻炼5次，而两周一付的人每月锻炼8次。此研究在国际期刊

A team from the University of Wollongong compared people who paid for a years gym membership in advance to those who signed a contract but paid by fortnightly salary deductions.

研究结果表明，一年一付的人平均每月锻炼5次，而两周一付的人每月锻炼8次。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。