Notice that Listing 5 and Listing 6 both add an additional "If-Match" header as part of the HTTP request.
注意，清单5和清单6都添加一个额外的“If - Match ”头部作为HTTP请求的一部分。
If you suspect a gas leak, do not strike a match or even turn on an electric light.
假如你怀疑有煤气泄漏，不要划火柴，甚至连电灯都不要开。
If Ferrari made a motorcycle to match its car, this would be it.
如果法拉利要造台摩托车来搭配它的汽车，这个就会是。
If an interactive computer screen is to match a whiteboard in usefulness, it must be viewable from arm's length as well as from across a room.
如果一个交互式计算机屏幕要在实用性上与白板相匹配，它必须在手臂长度范围和横跨房间范围内是可视的。
If the players think they can win this match easily, they are in for a rude awakening.
如果选手们认为他们可以轻而易举地赢得这场比赛，他们会遭到当头棒喝。
If these are truly the values of many young people, then their behavior doesn't match their beliefs.
如果这些真的是许多年轻人的价值观，那么他们的行为就与他们的观点不相符。
If Gemini and Leo give time to each other, then they can be an excellent match.
如果能够给彼此足够的时间，狮子座和双子座就能成为绝妙的一对。
If a person's fingerprints match those found on a knife, this is evidence that he touched it.
如果一个人的指纹与在刀上发现的指纹相符，这就是他触摸过刀的证据。
It's hard to be sure, say those who study the matter, because many Japanese couples, when polled, describe their marriage as a love match even if it was arranged.
研究这一问题的人说，这很难确定，因为许多日本夫妇在接受调查时，称他们的婚姻是爱情的结合，即使是包办的婚姻。
If you match up what you know and what you read—you have the word!
如果你把你知道的和你读到的匹配起来，你就学到了这个词！
Our school basketball team will win the next match if they practise more.
如果我们校篮球队多练习的话，他们将赢得下一场比赛。
We've programmed it to match an atomic clock if the waterways continue to flow at their present rate.
我们给时钟编了程序，如果河流继续以现在的速度流动的话，那么就让它与原子钟相匹配。
If you can't be there in person, the next best thing is watching the match on TV.
如果你不能亲自到场，那就只能在电视上看比赛了。
I want to know if he could start in today's match.
我想知道今天的比赛他是不是能上场。
If they do not match, you have two options.
如果它们不匹配，您有两种选择。
If no match is found, return null to the client application.
如果没有发现匹配，就向客户端应用程序返回空值。
If the match is unsuccessful, it issues a notification that the topic in the request is unknown.
如果匹配不成功，它也会发出一个通知，告知请求中的主题为未知的主题。
If a match is found, your credentials are sound and you can log in without further identification.
如果匹配，则表示您的凭据是有效的，您可以成功登录而无需进一步的识别。
Subsequent requests can then be inspected to see if they match any previously cached entry.
然后检查随后的请求，以查看它们是否匹配先前缓存的任何项。
If a match is found, the authentication provider returns the details of the user to the authentication manager.
如果找到一个匹配，身份验证提供者将用户的详细信息返回给身份验证管理器。
If a match is not found, it can deny access.
如果未能找到匹配信息，就能拒绝访问。
If the match is successful, the user is allowed to access the database.
如果匹配成功，那么就允许此用户访问数据库。
You can compare data to a regular expression; if they match, you know your data is valid.
您可以将数据与正则表达式进行比较，如果它们匹配，则知道数据是有效的。
If they match, the user can sufficiently assume that the file hasn't been tampered with in transit.
如果它们匹配，用户完全可以认定文件在传输过程中没有被篡改。
If a match is not found in the files, it returns PAM_AUTH_ERR failure code.
如果没有在这些文件中找到匹配项，则返回PAM_AUTH_ERR故障代码。
Binary will be allowed to execute if the values match.
如果两个值匹配，则允许该二进制执行。
These are hypothetical variables that will only have a value if the match succeeds.
这些是假定的变量，只有匹配成功时它们才会有一个值。
If the tokens match access is granted.
如果令牌匹配的话，访问就被允许。
If these match, but the exact match fails, a diagnostic is often reported.
如果这些匹配，但精确的匹配失败，那么通常报告一个诊断结果。
If these match, but the exact match fails, a diagnostic is often reported.
如果这些匹配，但精确的匹配失败，那么通常报告一个诊断结果。
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