If, in fact, no date range entry is supplied or if no date range matches, the default destination is invoked.

事实上，如果没有提供日期范围条目，或者没有匹配的日期范围，则会调用缺省目标。

youdao

The behavior of multiselect gets more interesting with Object as result type or if no type argument is specified.

如果以Object作为结果类型或没有指定类型参数时，multiselect的行为会变得更加有趣。

youdao

If, in fact, no date range entry is supplied or if no date matches the selection criterion, the default destination will be invoked.

事实上，如果没有提供日期范围条目，或者没有匹配选择条件的日期，则会调用缺省目标。

youdao

No one knew if they could get the spacecraft back to Earth, or if they could survive long enough to return.

VOA: special.2009.07.22

No, no. But if you have a UROP, or you have a sports practice or something, we will allow that.

不行，但是如果你得到本科生研究计划，或者你要进行体育锻炼，我们是能够接受的。

麻省理工公开课 - 固态化学导论课程节选

Deny thy father and refuse they name, or if thou wilt not, be but sworn, my love, and I'll no longer be a Capulet." She's a Capulet.

否认你的父亲，抛弃你的姓名吧，也许你不愿意这样做，只要你宣誓做我的爱人，我也不愿再姓凯普莱特了，她姓凯普莱特。

麻省理工公开课 - 固态化学导论课程节选

Filburn, from 1942, the Court said that the federal government could regulate the amount of wheat grown on a farm, even if none of the wheat was sold across state lines, or even if no wheat was sold at all.

NEWYORKER: Partners

The old friends and the old enemies no longer existed, or if they did they no longer had the same significance.

BBC: Unit 6B: Ideological Development in the UK

However, MPs rejected Labour MP John McDonnell's amendment to allow squatters to occupy a building if it had been empty for six months or more and if there were no significant steps being taken to "refurbish, let or sell the building at the time of the trespass".

BBC: Legal Aid and Sentencing Bill part two