Ainda não temos significados para "launch teargas".
1Police clashed with the protesters, shooting rubber bullets and launching teargas to disperse crowds.
2Israeli troops launched teargas grenades at Palestinian protestors along Israel's West Bank 'security wall' today.
3Police in riot gear launched teargas and pepper spray into the crowds of protesters on Monday night, local media reported.
4Loyal troops launched teargas rounds and began clashing with the mutineers who had joined the nightly protest, mostly police but also some soldiers.