unless是什么意思？

We are both frequent theater-goers," Aaron explains, " and I'll gladly pay for two tickets, just to have pass company it plays in concerts , but she won't go anywhere unless she can pay her own way

Almost every child, on the first day he sets foot in a school building, is smarter, more curious, less afraid of what he doesn't know, better at finding and figuring things out, more confident, resourceful (机敏的), persistent and independent than he will ever be again in his schooling – or, unless he is very unusual and very lucky, for the rest of his life.

It's pointless unless there is a repeatable process in place to turn inspiration into financial performance.

Unless you're sitting next to someone who is coughing or sneezing, you shouldn't worry too much about getting sick.

Unless renewables become cheap enough that substantial carbon deposits are left underground for a very long time, if not forever, the planet will likely be exposed to potentially catastrophic climate risks.

Testing innovations do no good unless the good experiments are identified and expanded and the bad ones are dropped.

They’re not really well-regulated unless they adhere to some industry standard.

The 2004 Commercial Space Launch Amendments Act, intended to encourage private space vehicles and services, prohibits the transportation secretary ( ' , and thereby the FAA) from regulating the de sign or operation of private spacecraft, unless they have resulted in a serious or fatal injury to crew or passengers.

University officials say that they have no plans to track their students (and Apple said it would not be possible unless students give their permissio.

Unless you want to pick up and move to India, or Brazil, or China, the best way to do that is through trade.

Recently, the UK National Stem Cell Network warned the UK could lose its place among the world leaders in stem cell research unless adequate funding and legislation could be assured

M :well ,that guy won't be able to win the election unless he got the majority vote from women students ,and I am not sure about it ?

Unless a miracle happens, this may be the end of us

Also, there are a lot of wonderful clubs, but you shouldn't allocate too much time to club activities, unless they are directly related to your study.

Most forms of steel abruptly become brittle at temperatures below about -25°C unless they are mixed with other metals.

The 2004 Commercial Space Launch Amendments Act, intended to encourage private space vehicles and services, prohibits the transportation secretary and thereby the FA from regulating the design or operation of private spacecraft, unless they have resulted

They're not really well-regulated unless they adhere to some industry standard.

Unless the meal takes place in a beer house, this is considered bad manners.

Unless you were prepared to pay, they were increasingly difficult to obtain for any but the most severely disabled.

We’re big advocates of bodily autonomy and not forcing him to hug or kiss people unless he wants to, but it never occurred to me that I should ask his permission to post photos of him online.

Were big advocates of bodily autonomy and not forcing him to hug or kiss people unless he wants to, but it never occurred to me that I should ask his permission to post photos of him online.

When college students were reminded of a time they had been excluded in a social setting, they compensated by exaggerating their number of friends—unless they were first given tasks that caused them to interact with their phone as if it had human qualitie