“看门狗”用英语怎么说

这条看门狗不好斗，因此正在养狗场受训。The guard dog was now in kennels as it was not aggressive.沉重的脚步声惊醒了看门狗.The sound of the heavy footsteps awoke the watchdog.拴在链子上的看门狗狂躁地流着口水。Mad guard dogs slavered at the end of their chains....