Chinese grammar - Common idiomatic uses of 不得 (bùdé)

Common idiomatic uses of 不得 (bùdé)

In Chinese, 不得 (bùdé) is frequently used to express prohibition or a strict rule on public signs and in formal instructions.

Examples:
	不得吸烟 bùdé xīyān Smoking prohibited 不得 (děi) means 'must' 吸烟 (xīyān) means 'to smoke'
	不得进入 bùdé jìnrù No entry 进入 (jìnrù) means 'to enter'
	不得停车 bùdé tíngchē No parking
	不得大声喧哗 bùdé dàshēng xuānhuá No loud noise 大声 (dàshēng) means 'loudly' 喧哗 (xuānhuá) means 'to make noise'
	未经许可不得进入 wèijīng xǔkě bùdé jìnrù No entry without permission 未经 (wèijīng) means 'without undergoing' 许可 (xǔkě) means 'permission'
	不得随意丢弃垃圾 bùdé suíyì diūqì lājī No littering at will' 随意 (suíyì) means 'as one wishes 丢弃 (diūqì) means 'to discard' 垃圾 (lājī) means 'garbage'
	不得触摸 bùdé chùmō Do not touch 触摸 (chùmō) means 'to touch'
	未成年不得饮酒 wèichéngnián bùdé yǐnjiǔ No alcohol for minors 未成年 (wèichéngnián) means 'underage' 饮酒 (yǐnjiǔ) means 'to drink alcohol'
	不得带入宠物 bùdé dàirù chǒngwù No pets allowed 带入 (dàirù) means 'to bring in' 宠物 (chǒngwù) means 'pet'
	不得拍照 bùdé pāizhào Photography prohibited
	不得乱扔垃圾 bùdé luànrēng lājī No littering 乱扔 (luànrēng) means 'to throw carelessly', 垃圾 (lājī) means 'garbage'
	不得进入施工区 bùdé jìnrù shīgōngqū No entry into construction area 施工区 (shīgōngqū) means 'construction area'
	不得随地吐痰 bùdé suídì tǔtán No spitting (anywhere) 随地 (suídì) means 'anywhere' 吐痰 (tǔtán) means 'to spit'
	不得在地铁上吃东西。 bù dé zài dìtiě shàng chī dōngxi. Eating is not allowed on the subway. 地铁 (dìtiě) means 'subway' or 'metro'