Sī / jī / bǎ / zì / xiè / chē / tíng / wěn / hòu / dǎ / kāi / chē / xiāng / xiè / xià / shí / kuài司机把自卸车停稳后,打开车厢卸下石块。After parking the dump truck securely, the driver opened the bed and unloaded the rocks.