Sadly — although the tour is for over 21's only — it is not guaranteed that every visitor will get lucky.

遗憾的是，尽管该活动仅限21岁以上的成年人参加，但不能确保每位游客都能一饱眼福。

youdao

It's as if the commodity of the bride is deemed truly valuable only if it can be guaranteed pure and untouched.

这就好像新娘这件商品,只有在完全的纯净没有动过才是有真正价值的。

耶鲁公开课 - 弥尔顿课程节选

Now, it's not guaranteed it's right, right?

这段代码中的规格说明？

麻省理工公开课 - 计算机科学及编程导论课程节选

And I also want to point out, it's guaranteed pretty much you may or may not be able to see, sometimes it's hard to see that one that's getting near the UV end of our visible spectrum. So we won't worry if we can't see that.

我要指出的是，我可以保证你们,但你们可能会看不到，有时候很难看到,这个可见光谱边缘接近紫外光地方的这根谱线,所以看不到也不用担心。

麻省理工公开课 - 化学原理课程节选

And while that could be the case, as business investment and relocation could be stimulated, it's not clear that it's guaranteed, particularly at the starting levels and in the international circumstances in which Scotland now finds itself.

BBC: Taxing times for Scottish business

Whatever this eccentric musical genius turns his hand to next, it's guaranteed that it won't sound like anybody or anything else.

BBC: Andrew Bird's high-wire act takes flight

"But if you stand at opposite sides of the room and refuse to engage, it's guaranteed nothing will happen, " she added.

BBC: Obama's first 100 days: Foreign policy