今天我们来聊聊坐地铁jīn tiān wǒ men lái liáo liáo zuò dì tiěToday, let's talk about taking the subway.在中国的大城市，这些年修建的地铁都非常好zài zhōng guó de dà chéng shì ，zhè xiē nián xiū jiàn de dì tiě dōu fēi cháng hǎoIn big cities in China, the subways built in recent years are all very good.宽大，明亮，安全，便捷kuān dà ，míng liàng ，ān quán ，biàn jiéThey are spacious, bright, safe and convenient.我们在地铁站入口，wǒ men zài dì tiě zhàn rù kǒu ，We are at the entrance of the subway station.通过电梯进入地铁内部tōng guò diàn tī jìn rù dì tiě nèi bùEnter the interior of the subway through the elevator.然后，通常要走一段路，才能到安检口rán hòu ，tōng cháng yào zǒu yī duàn lù ，cái néng dào ān jiǎn kǒuThen, usually, we need to walk a certain distance to reach the security checkpoint.我们把包包放到安检机上wǒ men bǎ bāo bāo fàng dào ān jiǎn jī shàngWe put our bags on the security inspection machine.如果有液体，工作人员会请你拿出来检查一下rú guǒ yǒu yè tǐ ，gōng zuò rén yuán huì qǐng nǐ ná chū lái jiǎn chá yī xiàIf there is liquid, the staff will ask you to take it out for inspection.其实，在2008年以前是没有地铁安检的qí shí ，zài 2008 nián yǐ qián shì méi yǒu dì tiě ān jiǎn deIn fact, there was no subway security inspection before 2008.2008年，北京地铁站开始设置安检口2008 nián ，běi jīng dì tiě zhàn kāi shǐ shè zhì ān jiǎn kǒuIn 2008, security checkpoints began to be set up in Beijing subway stations.此后，全国的地铁站都开始安检了cǐ hòu ，quán guó de dì tiě zhàn dōu kāi shǐ ān jiǎn leSince then, security inspections have started in subway stations across the country.这个问题其实会有多个角度的解读zhè gè wèn tí qí shí huì yǒu duō gè jiǎo dù de jiě dúIn fact, this issue can be interpreted from multiple perspectives.有好的一面，也有不好的一面yǒu hǎo de yī miàn ，yě yǒu bù hǎo de yī miànThere are both good aspects and bad aspects.在这里我们就不讨论了zài zhè lǐ wǒ men jiù bù tǎo lùn leWe won't discuss it here.以前我们会刷公共交通卡进站，yǐ qián wǒ men huì shuā gōng gòng jiāo tōng kǎ jìn zhàn ，In the past, we would swipe the public transportation card to enter the station.或者买临时地铁卡huò zhě mǎi lín shí dì tiě kǎOr buy a temporary subway card.但这些年，中国的电子支付非常发达dàn zhè xiē nián ，zhōng guó de diàn zǐ zhī fù fēi cháng fā dáBut in recent years, electronic payment in China has been very developed.大部分人都是用手机扫码进站，dà bù fèn rén dōu shì yòng shǒu jī sǎo mǎ jìn zhàn ，Most people scan the code with their mobile phones to enter the station.或者人脸识别进站huò zhě rén liàn shí bié jìn zhànOr enter the station through face recognition.电子支付在中国非常非常发达，diàn zǐ zhī fù zài zhōng guó fēi cháng fēi cháng fā dá ，Electronic payment is extremely developed in China.我们以后可以聊一聊wǒ men yǐ hòu kě yǐ liáo yī liáoWe can talk about it later.地铁站里是很宽敞和干净的dì tiě zhàn lǐ shì hěn kuān chǎng hé gān jìng deInside the subway station is very spacious and clean.还有等待的长凳和卫生间hái yǒu děng dài de cháng dèng hé wèi shēng jiānThere are also waiting benches and restrooms.指示系统也设计得很清晰zhǐ shì xì tǒng yě shè jì de hěn qīng xīThe signage system is also designed very clearly.地铁车厢里面也很干净dì tiě chē xiāng lǐ miàn yě hěn gān jìngThe subway carriages are also very clean.基本没有人在车厢里面吃东西jī běn méi yǒu rén zài chē xiāng lǐ miàn chī dōng xīBasically, no one eats in the carriages.有安保人员来回巡视，yǒu ān bǎo rén yuán lái huí xún shì ，There are security personnel patrolling back and forth.处理一些不文明的行为，chǔ lǐ yī xiē bù wén míng de xíng wéi ，They deal with some uncivilized behaviors.以及帮助需要帮助的人yǐ jí bāng zhù xū yào bāng zhù de rénAnd help those in need.我在的城市是成都wǒ zài de chéng shì shì chéng dūThe city I'm in is Chengdu.这里的地铁线已经有约20条zhè lǐ de dì tiě xiàn yǐ jīng yǒu yuē 20 tiáoThere are already about 20 subway lines here.线路之间相互换乘很方便xiàn lù zhī jiān xiāng hù huàn chéng hěn fāng biànIt's very convenient to transfer between lines.希望你能来体验中国的地铁xī wàng nǐ néng lái tǐ yàn zhōng guó de dì tiěI hope you can come and experience the subways in China.