tū jī
sudden and violent attack
assault
fig. rushed job
concentrated effort to finish a job quickly
tū jī jiǎn chá
sudden unannounced investigation
on-the-spot inspection
to search without notification
xiāng xiàng tū jī
sudden attack from the opposite direction (idiom)
shén fēng tū jī duì
kamikaze unit (Japanese corps of suicide pilots in World War II)