1 an animal that many people keep as a pet, or for working on farms, hunting, etc 狗；犬
A dog can bark, growl or whine. Dogs wag their tails when they are happy. 狗会发出声浪大而短的吠声(bark)、发出低沉的声音以示愤怒、警告(growl)或发出长而高的刺耳声音(whine)，高兴时会摆尾巴(wag its tail)。
2 a male dog or other animal (fox) 公狗；公狐
dog²
/dɒg; US dɔ:g ||; dɔg/verb [T] (dogging;dogged) to follow sb closely 紧随；跟纵；尾随: A shadowy figure was dogging their every move.一个人影尾随着他们的一举一动。 (figurative 比喻)Bad luck and illness have dogged her career from the start.她从开始工作以来就不能摆脱厄运和疾病的缠绕。