Meaning of zhǔn:
准
to allow; to grant
Lǎoshī bù zhǔn xuéshēng zài kètáng shàng shǐyòng shǒujī.
老师不准学生在课堂上使用手机。
The teacher does not allow students to use their phones in class.
Tā bèi zhǔn xǔ cānjiā huìyì.
他被准许参加会议。
He was granted permission to attend the meeting.
in accordance with; accurate; about to become (bride, son-in-law etc)
Wǒ xūyào zhǔnbèi míngtiān de yǎnjiǎng.
我需要准备明天的演讲。
I need to prepare for tomorrow's speech.
Tā de fánnǎo shì yīnwèi mùbiāo tài bù zhǔn.
他的烦恼是因为目标太不准。
His frustration is because the target is too inaccurate.
Tā shì yīgè zhǔn xīnniáng, zhèngzài chóubèi hūnlǐ.
她是一个准新娘,正在筹备婚礼。
She is an about-to-be bride, preparing for the wedding.
in the light of
Zhǔn bèi hǎo, dàjiā jiù kěyǐ chūfā le.
准备好,大家就可以出发了。
Once ready, everyone can set off.
standard
Tā shì hégé de cáipàn, zǒng shì ànzhào zhǔnzé zhíxíng rènwù.
他是合格的裁判,总是按照准则执行任务。
He is a qualified referee who always performs tasks according to standards.
definitely; certainly
Tā jīntiān zhǔn néng dào.
他今天准能到。
He will definitely arrive today.
Wǒ hěn zhǔnshí dì dào le huìyì.
我很准时地到了会议。
I arrived at the meeting very punctually.
quasi-; para-
Tā shì yī gè zhǔn zhuān jiā.
他是一个准专家。
He is a quasi-expert.
Zhège shèbèi shì wèi zhǔn zhuānyè shèyǐngshī shèjì de.
这个设备是为准专业摄影师设计的。
This equipment is designed for para-professional photographers.