Explanation: The things in progress, obstacles, and deliberately difficult. Source: Qing Zhang Jixin "Road salt officialdom recorded knowledge" is based on grain, General entertainment channel will be those who, from fear of the obstruction is. " Examples: General entertainment channel will be based on grain who fear it ~ also. (Qing Zhang Jixin "Road salt officialdom recorded knowledge")
No. 2
Terrier: block, obstruct. In the matter of ongoing and obstacles, and deliberately difficult.