diànnǎo / tūrán / guānjī / le / wǒ / huáiyí / shì / diànyuán / gōngyìngqì / chū / le / wèntí电脑突然关机了,我怀疑是电源供应器出了问题。The computer suddenly shut down, and I suspect there is a problem with the power supply unit.