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1·I won't tell them—not unless you say I can.

我绝不告诉他们—除非你允许。《牛津词典》

2·Unless she loses some weight, she's had it.

除非她减掉一些体重，否则她就完蛋了。《柯林斯英汉双解大词典》

3·I tend to forget things unless I mark them down.

我常常会忘事，除非我把它们记下来。《柯林斯英汉双解大词典》

4·That's the plan—unless anything untoward happens.

计划就这么定了—除非出现异常情况。《牛津词典》

5·Have a cup of tea—unless you'd prefer a cold drink?

喝杯茶吧—除非你喜欢冷饮？《牛津词典》

6·Unless I'm mistaken, she was back at work yesterday.

除非是我记错了，她是昨天回来上班的。《牛津词典》

7·He resolutely refused to speak English unless forced to.

除非被逼迫，他坚决拒绝说英语。《柯林斯英汉双解大词典》

8·Why did you need a room unless you were up to something?

除非你要捣什么鬼，不然为什么需要一个房间呢？《柯林斯英汉双解大词典》

9·Recovery can't be sustained unless more jobs are created.

除非有更多的工作机会被创造出来，否则复苏无法保持下去。《柯林斯英汉双解大词典》

10·The president could face a rough ride unless the plan works.

除非计划奏效，否则该总统会面临一个难关。《柯林斯英汉双解大词典》

除非

1·I won't tell them—not unless you say I can.

我绝不告诉他们—除非你允许。《牛津词典》

2·I tend to forget things unless I mark them down.

我常常会忘事，除非我把它们记下来。《柯林斯英汉双解大词典》

3·That's the plan—unless anything untoward happens.

计划就这么定了—除非出现异常情况。《牛津词典》

4·Have a cup of tea—unless you'd prefer a cold drink?

喝杯茶吧—除非你喜欢冷饮？《牛津词典》

5·He resolutely refused to speak English unless forced to.

除非被逼迫，他坚决拒绝说英语。《柯林斯英汉双解大词典》

如果不

1·His kidnappers have threatened that they will kill him unless three militants are released from prison.

绑架者威胁说，如果不释放3个武装分子出狱，他们就会杀了他。《柯林斯英汉双解大词典》

2·Unless something unexpected happens, I'll see you tomorrow.

如果不出意外，我明天去看你。《牛津词典》

3·We never know we will succeed unless we actually try.

如果不去尝试，我们永远也没法预计我们将会成功。

4·Once, she threatened to burn all of one of her daughter's stuffed animals unless she played a piece of music perfectly.

有一次，她威吓女儿如果不把一段音乐完美奏出，就要烧掉女儿的全部毛绒玩具。

5·The plant are said to deprive nearby plants of water and grow rampantly, destroying the grassland unless measures are taken against it.

据说这种植物会把土壤中的水分吸光，让附近的植物无法生长，如果不采取措施加以控制，它将毁灭草原。

除非是

1·Unless I'm mistaken, she was back at work yesterday.

除非是我记错了，她是昨天回来上班的。《牛津词典》

2·Satya had told us that, unless one was very very expert, getting into a railway carriage was a terribly dangerous affair — the least slip, and it was all up.

萨提亚告诉我们，除非是一个经验非常丰富的人，进到火车车厢里是一件极其危险的事情- - -稍微滑一下，就一切都完了。

3·Far as I can tell, they basically just walked right in. an orderly nearby says it's impossible because the doors are locked every night, unless someone left it open for them.

附近的一个勤杂工说那是不可能的，因为每天晚上都必须要锁门的，除非是有人故意为他们开着。

4·Photography is fair: you gain publicity with the quality of your images. Unless the images are stolen, there is no way of cheating yourself higher.

摄影师公平的：好的作品才能赢得公众关注。除非是你的作品被盗，别想着法子投机取巧。

5·I would rather sit in the open air, for no dust gathers on the grass, unless where man has broken ground.

我宁可坐在露天，因为草叶之上，没有灰尘，除非是人类已经玷辱过了的地方。

若非

1·Unless yesterday again meet by chance beauty, the present life love fate perhaps will pass away with the breeze.

若非昨日再次邂逅佳人，今世情缘也许将随风逝去。

(1)unless and until直到…才