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我们睡着时一定让贼入室偷了。
We must have been burgled while we were asleep.
《牛津词典》
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必须办理一定的手续方能移居他国。
Certain formalities have to be gone through before you can emigrate.
《牛津词典》
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莫比对音调的分辨能力一定很强。
Moby certainly has a fine ear for a tune.
《柯林斯英汉双解大词典》
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我们一定不能因细节问题误事。
We mustn't get bogged down in details.
《牛津词典》
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他有点踉跄。他一定醉得很厉害。
He was reeling a little. He must be very drunk.
《柯林斯英汉双解大词典》
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一定保证你认真遵循这些用法说明。
Make sure that you follow the instructions carefully.
《柯林斯英汉双解大词典》
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走了这么远的路，你一定饿了吧。
You must be hungry after all that walking.
《牛津词典》
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别挂断电话—我们一定得谈谈！
Don't hang up on me—we must talk!
《牛津词典》
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我相信它们的味道一定鲜美极了。
I'll bet they'll taste out of this world.
《柯林斯英汉双解大词典》
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我们必须好好准备，一定不要有差错。
We must be well prepared, there must be no slips.
《柯林斯英汉双解大词典》
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“你一定冻坏了吧，”她说。
"You must be freezing," she said.
《柯林斯英汉双解大词典》
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那房子一定花了他们不少钱。
That house must have knocked them back a bit.
《牛津词典》
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蹲下！一定不要让人看见你。
Keep down! You mustn't let anyone see you.
《牛津词典》
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他体重一定增加了好几公斤。
He must have put on several kilos.
《牛津词典》
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你一定觉得我的态度让人烦。
You must have found my attitude annoying.
《柯林斯英汉双解大词典》
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任何商业投资都包含一定的风险因素。
Any business venture contains an element of risk.
《牛津词典》
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“不一定，”她神秘地说道。
"Not necessarily," she says cryptically.
《柯林斯英汉双解大词典》
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他的古怪行为一定事出有因。
There has to be a reason for his strange behaviour.
《牛津词典》
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一定不要把这招牌挂颠倒了。
Make sure that sign's the right way up.
《牛津词典》
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他们双方都有一定的道理。
They both had some right on their side.
《牛津词典》
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你穿着那件毛衣一定很热！
You must be boiling in that sweater!
《牛津词典》
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你这次旅行一定很开心吧！
Your trip must have been fun!
《牛津词典》
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一定让冻鸡化透后再烹调。
Make sure you defrost the chicken completely before cooking.
《牛津词典》
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记住，你一定得回来吃饭。
You must be home for dinner, mind.
《牛津词典》
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你一定不要让大门敞开着。
You mustn't leave the gate open.
《牛津词典》
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他的话是有一定根据的。
There is some substance in what he says.
《牛津词典》
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在一定程度上的确如此。
That's true, to a certain extent.
《牛津词典》
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这些书一定年头很久了。
These books must be very old.
《柯林斯英汉双解大词典》
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这种方法有一定的新意。
There's a certain novelty value in this approach.
《牛津词典》
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他认为它一定值亿万元。
He thought that it must be worth billions.
《柯林斯英汉双解大词典》