mǎ kè dì yí cì qù kè hù gōng sī jǐn zhāng de duì yí wèi jīng lǐ shuō lǎo shi hǎo

马克第一次去客户公司，紧张地对一位经理说：“老师好。

Mark went to the client's company for the first time and nervously said to a manager, 'Hello, teacher.'