allowed for use的意思|示意

Empty alternatives are not allowed (these are almost always a mistake), but if you really want an empty alternative use (? :) as a placeholder, for example.

空的选择是不允许的(这通常都是错误)，但如果你真的需要一个空的选择，可以使用(？：)作为占位符，例如。

But we can't tell you who is allowed to use your swimming pool, pay your taxi fares for you — or do anything about the exchange rate.

但我们没办法告诉你谁可以用你家的游泳池，给你掏打车钱，或者算汇率。

You can use regular expressions to limit which characters are allowed and to be more specific (for example, you can often limit even further what the first character can be).

您可以使用正则表达式来更为详细地限制所允许的字符串(例如，您可以进一步指定第一个字符可以是哪些字母)。

If you’re allowed to use your cell phone in class, your Android can be a nifty replacement for that (almost as expensive) scientific calculator.

如果教室里允许使用手机的话，那么你的android可能是款极好的科学计算器，而一般的计算器要贵好多。 是不是还会省钱呢？

If you are allowed to use a scratch paper during the exam, do some brainstorming before you jump in for your essay answer.

如果在考试时允许使用草稿纸，你可以在正式答问答题之前来个头脑风暴。

Often it is senior executives who insist on being allowed to use their own technology for work, which makes it hard for it folk to say no.

经常有一些高级执行官坚持要用自己的技术设备办公，这让IT平民们很难说不。