An initial de-cluttering is usually triggered by the threat of frost.
The symptoms are usually triggered by medications or other environmental stimulation.
"Seasonal allergies are usually triggered by windborne pollens, not by pollens spread by insects," he said.
For reasons that are not yet known, these attacks are usually triggered by strong emotions.
He added: "Remedies against directors are usually triggered when the company is wound up".
Conscription involves a period of compulsory military service for all eligible males, usually triggered by their date of birth.
Because the N.C.A.A. gives them "credibility," a seal of approval, with only occasional investigations, usually triggered by others.
Diapause is usually triggered by an environmental stimulus, and development resumes when a contrasting stimulus (temperature and moisture) occurs.
Usually triggered by a movie that found new ways of depicting violence, with new equipment and in new settings — "The Road Warrior"!
In truth, too much of the past 20 years has been spent debating the union's institutions, a process usually triggered by an inter-governmental conference (IGC).
Christians, who tend to be among the poorest sections of society, have suffered prejudice and sporadic bouts of mob violence and church burnings, usually triggered by accusations of anti-Islam blasphemy.
