今天小编与大家分享
An old dog barks not in vain.
老狗不乱吠; 老狗 一吠, 就得小心。
A good dog deserves a good bone.
好狗应该啃好骨头, 有功者受赏。
A living dog is better than a dead lion.
死狮不如活狗。
n old dog will learn no new tricks. (=You cannot teach old dogs new tricks.)
老狗学不了新把戏; 老年人很难适应新事物。
Barking dogs seldom bite.
爱叫的狗 不咬人; 咬人的狗不露齿。
Beware of a silent dog and still water.
提防不吠的狗, 小心 静止的水。
Barking dogs seldom bite.
吠犬不咬人（意指：对于高声发出恐吓，或惯于大声吼叫的人，勿须当真）。
Dumb dogs are dangerous.
不叫的狗咬人
If the old dog barks, he give the counsel.
老狗叫，是忠告
Every dog is a lion at home. [Every dog is valiant at his own door.]
狗是百步王, 只在门前凶。
