A vaccine may also give us passive immunity by providing B cells taken from an animal or a human to play the same role.
疫苗也可以通过提供取自动物或人身上的B细胞来发挥同样的作用，从而使我们获得被动免疫。
B: Yes. He always get us special gift.
是的，他总是给我们买特别的礼物。
"Pru will have to explain to us what is strategic plan B," one shareholder said.
“保诚必须向我们解释清楚战略替代方案是什么，”一位股东表示。
B We're going for a drink. Want to join us?
B我们要去喝点什么。你想和我们一起去吗？
B: Mr. Bergerson, you leave us no alternative.
博格森先生，你让我们没有选择了。
We're pleased that our original series a investor and new series B investors have given us a vote of confidence on our series a performance!
我们很高兴地看到第一轮的投资者和本论投资者对于我们第一期的表现给予了信任投票！
B. a young woman walked in, gave us a thick folder, and patiently answered our questions.
一个年轻女士走进来，给了我们一个厚厚的文件夹，很耐心地回答我们所有的问题。
B: So why haven't they given us a firm answer?
那他们怎么还没给我们确切的答复？
B: We ordered the motor already, and it will be sent to us by express delivery.
B：我们已经订了发动机了，很快就会给我们快递过来。
B: Yes.When he announces a plan, all of us fall into line.
是的。他宣布的计划，我们都同意。
B: Hi, Lily, welcome to join us, I will show you around. Come with me, please.
B：你好，莉莉，欢迎你加入我们，我带你四处看看，请跟我来。
B: Thanks a lot.I hope you can come along with us, too.
谢谢。我希望你能和我们一起去。
他对我们要求很严。
B: There's a lunar calendar for us to check the dates.
我们有一本农历可供查对。
B: There were 5 of us and we drank 49 beers.
我们有五个人，喝了49瓶啤酒。
We need a capable person to help us in time of difficulties. b. We need a capable person to help us in times of difficulties.
我们需要一个有能力的人在困难的时候帮助我们。
B: Thank you for reminding us. We will do that.
谢谢你们的提醒，我们一定注意。
B: Every year, US News puts out rankings of boyfriends and girlfriends.
乙：《美国新闻》每年会退出男友和女友排名。
B: What’s that building opposite us?
对面那座建筑是什么？
B: Never mind.You can come with us next time.
没关系，你可以下次来。
So a lot of us were asking, 'What's plan B?'
所以我们很多人在问，'B计划是什么呢？ '？
B: Some of us go to the Cafeteria. You can go out for lunch as well.
B：有的去自助食堂，你也可以出去吃。
B: Good. We certainly appreciate your making these concessions for us.
太好了，我们非常感激你方做出这些让步。
In August 2007, an Air Force unit mistakenly flew six nuclear warheads across the US on a B-52—a cardinal sin to an old Cold Warrior like Gates.
2007年8月，空军某部一架载有6个核弹头的B-52轰炸机错误地飞越美国——对于像盖茨一样的冷战老勇士来说，这是一桩蠢事。
In August 2007, an Air Force unit mistakenly flew six nuclear warheads across the US on a B-52—a cardinal sin to an old Cold Warrior like Gates.
2007年8月，空军某部一架载有6个核弹头的B-52轰炸机错误地飞越美国——对于像盖茨一样的冷战老勇士来说，这是一桩蠢事。
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