Moscow's sway in the regions has always varied from strong to tenuous.莫斯科对这些地区的控制力一直时强时弱。Many teenagers have poor impulse control.许多青少年控制力差，易于冲动。In times of currency crisis interest rates can be raised as a sign that a government is in command.在发生货币危机的时期，利率会提高，以表明政府有控制力。