口罩是一次性用品。
Pattern #2: one-time safe publication
模式 #2：一次性安全发布（one-time safe publication）
This one-time setup is required only on Windows.
仅在 Windows 上需要进行以下一次性设置。
One loyal reader is worth thousands of one-time visitors
一个忠实的读者胜过千个只来一次的过客。
In general, one-time crashes are the most difficult to analyze.
一般来说，一次性崩溃是最难分析的。
Second, this process of evaluation is not a one-time process.
第二，估算的过程不是做一次就完了。
But after that one-time increase, the renminbi barely rose for months.
但在那次一次性升值之后，人民币几乎数月未升。
Application modeling and data modeling should rarely be a one-time shot.
应用程序建模和数据建模并不是件一劳永逸的事。
Choosing a one-time, positive, life-oriented symbolic act to mark your success.
为你的成功选择一个一次性、积极、以生活为导向的象征行为。
We insist on the safety of imported high-quality stain and one-time health needle!
我们坚持采用进口的高品质安全色料和一次性卫生针具！
“A one-time chance, ” he says, “to bring truly historic change to Israeli society.”
他说，“这是以色列的一个千载难逢的机会，能为社会真正带来历史性的变革。”
To maintain steady revenues, they focus on food rather than one-time purchases like pet toys.
为了保持稳定的收益流，他们把重点放在顾客需多次采购的宠物食品上，而不是宠物玩具等一次性采购品。
Program costs include a one-time enrollment fee and a registration fee for each exam you take.
项目费用包括一项一次性注册费用和你每场考试的报考费。
The rest of this article describes the one-time setup to consolidate and filter the information.
本文后面的内容将描述用于合并和过滤信息的一次性的设置。
Policy creation is generally a one-time activity if the organization's password policy is set.
如果设置了组织的密码策略，那么创建策略的活动通常只需要进行一次。
“It's the one-time expenses that kill a budget,” said Rick Kahler, a financial planner in Rapid City, S.D.
“这类一次性开支会耗尽整个预算，”南达科他州拉皮德城的理财规划师里克·卡勒（RickKahler）告诫道。
This one-time download occurs typically at startup, when the user points the browser to an application URL.
这种一次性的下载通常在启动时进行，也就是当用户通过浏览器访问应用程序的URL 时。
Visitors could use credit CARDS to make one-time donations or to sign up for recurring monthly contributions.
访客可以使用信用卡进行一次性捐款，或者注册，逐月进行捐款。
This Firefox extension USES semantic Web technology to automatically enter the one-time password for a user.
这个Firefox扩展使用语义web技术自动为用户输入一次性代码。
Then the WIP administrator defined 2 new schedules for that step: one recurring, and the other a one-time only.
然后，WIP管理员将为该步骤定义2个新的调度：一个重复发生，而另一个则只运行一次。
I told him I wanted discretion, that I didn't want to do anything risky, and that it would be a one-time thing.
我告诉他我想要谨慎行事，不愿意冒险，而且这只能是一次性的行为。
The donor community contributed to initial reserves and participant countries paid one-time participation fees.
捐赠界提供了最初储备，参与国一次性缴纳参与费。
This API enables sending one-time messages to many users at once and allows the receivers to respond to the sender.
这个API支持一次将消息发送给许多用户，并允许接收者对发送者进行响应。
Because of the added creation cost, use direct buffers only for long-lived buffers, not short, one-time, throwaway buffers.
因为创建直接缓冲区所增加的成本，所以直接缓冲区只用于长生存期的缓冲区，而不用于短生存期、一次性且用完就丢弃的缓冲区。
You might wonder whether the business model of offering free online play, supported solely by one-time box revenue, is viable.
您可能会思忖提供免费的在线游戏并只收取一次性费用这种业务模型是否可行。
"Marty created the wireless industry," says Tim McDonald, a former fund manager at Merrill Lynch and one-time board member at ArrayComm.
蒂姆·麦克唐纳曾任美林证券(Merrill Lynch)的基金管理人，也出任过arraycomm的董事会成员，他说：“马蒂缔造了无线通讯行业。”
"Marty created the wireless industry," says Tim McDonald, a former fund manager at Merrill Lynch and one-time board member at ArrayComm.
蒂姆·麦克唐纳曾任美林证券(Merrill Lynch)的基金管理人，也出任过arraycomm的董事会成员，他说：“马蒂缔造了无线通讯行业。”
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