bì xū
essentiel; indispensable
学习中文是必需的。
xuéxí zhōngwén shì bìxū de.
Learning Chinese is necessary.
为了生存，食物和水是必需的。
wèile shēngcún, shíwù hé shuǐ shì bìxū de.
Food and water are necessary for survival.
如果你想成功，努力工作是必需的。
rúguǒ nǐ xiǎng chénggōng, nǔlì gōngzuò shì bìxū de.
Hard work is necessary if you want to succeed.
必须 (bì xū)
must
必要 (bì yào)
necessary
非必需 (fēi bǐxū)
non-essential
可有可无 (kě yǒu kě wú)
optional
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The Chinese character 必 (bì) means "must" or "necessary", and 需 (xū) means "need" or "require". The word 必需 (bìxū) is a compound of these two characters, and it means "essential" or "indispensable".The character 必 is composed of two parts: the radical 卜 (bǔ), which means "divination", and the phonetic component 必 (bì), which is a variant of the character 畢 (bì), which means "to finish" or "to complete". The character 需 is composed of two parts: the radical 需 (xū), which means "to need" or "to require", and the phonetic component 須 (xū), which is a variant of the character 須 (xū), which means "beard" or "whiskers".The word 必需 is used in a variety of contexts to mean "essential" or "indispensable". For example, it can be used to describe the basic necessities of life, such as food, clothing, and shelter. It can also be used to describe things that are necessary for a particular task or activity, such as the tools needed to build a house.The word 必需 is a common word in Chinese, and it is important for HSK learners to understand its meaning and usage.
