n. watchdog
misc. a watch dog ; house dog
他训练猎狗帮他打猎，教看家狗守家。
He trains the hound to help him hurt and teaches the housedog to watch the house.
你将成为人类的看家狗。你会成为他最好的朋友。
You will guard the house of man. You will be his best Friend.
很显然他跟看家狗很熟——他一吹口哨，那狗就不叫了。
Apparently he knew the watchdog well, for it stopped barking as soon as he whistled.
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