Wǒ xūyào tōngguò sùdì jìsòng zhè fèn wénjiàn.
I need to send this document via express delivery.
Sùdì bǐ pǔtōng yóujiàn kuài hěn duō.
Express delivery is much faster than regular mail.
Tāmen tígōng guójì sùdì fúwù.
They offer international courier services.
