A dog with that degree of defense drive could be a menace to all society, if not for the threshold.

如果不是因为阈值，具有这种程度的防御驱力的狗，可能会是整个社会的威胁。

youdao

For a home protection dog, less fight drive and more defense is acceptable than for a service dog.

对于，家庭护卫犬，少一点的搏斗，多些防御是可以接受的。

youdao

Assuming the dog has good, strong nerves and a reasonably high threshold, a dog with strong defense drive can be a good working dog.

假设这条狗有良好强壮的神经，相当高的阈值，一条拥有强大防御驱力的犬会成为优秀工作犬。

youdao

Telecom, defense and aeronautics will continue to drive revenue for MEMS of all stripes.

FORBES: Magazine Article

Less than three hours later, an official with the Ministry of Defense was gunned down in a drive-by shooting in southern Baghdad's Dora neighborhood, police said.

CNN: Al Qaeda 'safe house' hit in Iraq

Spain had possessed the ball for roughly two-thirds of its games, turning each match into a high-class version of keep-ball, and in the process, becoming the first team to turn passing the ball into a form of defense: Like a clock-eating drive in football, if Spain has the ball, its opponent can't score and the Spanish keep the ball so well that they barely give up any chances, let alone goals.

WSJ: Euro 2012: The Reign in Spain Continues