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不得不 (bùdébù) has a stronger tone than "必须 (bìxū)" meaning "someone cannot help but do something."

=== Structure ===

<div class="jiegou">

Subj. + 不得不 + Verb

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=== Examples ===

<div class="liju">

* 我 感冒 的时候 一般 不 吃药 ， 但是 这 次 很 严重 ， 我 <em>不得不</em> 吃 药 。<span class="pinyin">Wǒ gǎnmào de shíhou yībān bù chīyào, dànshì zhè cì hěn yánzhòng, wǒ <em> bùdébù</em> chī yào.</span><span class="trans">I usually don't take medicine when I have cold. But it's very bad this time, and I have to take some pills.</span>
* 你 真的 太 厉害 了 ， 我 <em>不得不</em> 承认 。 <span class="pinyin">Nǐ zhēnde tài lìhai le, wǒ <em>bùdébù</em> chéngrèn.</span><span class="trans">You are so good. I have to admit it.</span>
* 老板 很 讨厌 应酬 ， 可是 她 <em>不得不</em> 去 。 <span class="pinyin">Lǎobǎn hěn tǎoyàn yìngchou, kěshì tā <em>bùdébù</em> qù.</span><span class="trans">The boss doesn't like to business socializing, but she has to go.</span>
* 不好意思 ， 时间 有限 ， 我 <em>不得不</em> 打断 你 。 <span class="pinyin">Bù hǎoyìsi, shíjiān yǒuxiàn, wǒ <em> bùdébù</em> dǎduàn nǐ.</span><span class="trans">I'm sorry. We have very limited time. I have to interrupt you.</span>
* 这些 情况 很 重要 ， 我们 <em>不得不</em> 重视 。 <span class="pinyin">Zhèxiē qíngkuàng hěn zhòngyào wǒmen <em> bùdébù</em> zhòngshì.</span><span class="trans">The situation is very important. We have to take it very seriously.</span>

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== See also ==

[[Category:B2 grammar points]]
{{Basic Grammar|不得不|B2|Subj. + 不得不 + Verb|老板 很 讨厌 应酬，但是 她 <em>不得不</em> 去。|grammar point|ASG0C825}}
{{Similar|Expressing "must" with "dei"}}
{{Similar|Declaring the only option with "zhihao"}}
{{Similar|Expressing determination with "feiyao" }}
{{Used for|Expressing attitude}}
{{Used for|Expressing obligations}}
{{POS|Adverbs}}
{{Translation|have to}}